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number of northern pike anglers may take from Holter Lake and the waters just above it. A month later, the agency said it had completed an environmental assessment of a plan to remove northern pike from the
Missouri River and its feeder streams. The agency sought public comment on the plan, which it said would take three to five years to complete at a cost of $ 20,000. The agency intended to use nets and "passive" fish traps to remove the pike, but might employ "active" measure like electric fishing, gill netting, or trap netting if the passive measures were not effective. In April 2011, the FWP removed all fishing limits on northern pike from the headwaters of the Missouri River to Holter Dam in order to encourage fishermen to eradicate the species. In March 2012, the state began a project to eradicate all northern pike from the headwaters of the Madison,
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the State of
Montana proposed a 10-year fishery management plan for 11 sport and 10 non-sport fish species in Holter Lake. The regulations would have permitted unlimited walleye fishing below Holter Dam as a means of protecting trout from this voracious, nonnative predator species. Final regulations approved in October 2010 permitted fishermen to catch and remove an unlimited number of walleye from Holter Dam to Cascade Bridge, but limited catches to 20 per day (and 40 in possession) from Cascade Bridge to Black Eagle Dam. These limits were reaffirmed by state fisheries regulations in April 2011. The state also increased the number of walleye caught between Hauser Dam and Holter Dam to 10 daily (although all fish 20 to 28 inches (51 to 71 cm) in length had to be released), and set the yellow perch limit on Holter Reservoir down to 25 per day.
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although there had been a slight decline in the number of all fish as well as the sizes of all fish since the sport fish population peaked in 1999, those declines were slight compared to what had been predicted. A 2006-2007 survey of burbot and stonecats in the
Missouri River immediately below Holter Dam found four times as many burbot as expected. Heavy snowpack and spring rains in 2008, however, forced dam operators to increase the flow to 11,000 cubic foot (310 m) per second. By June, flows increased to 16,000 cubic foot (450 m) per second, permitting a "flush" of the river. Flows stayed double their typical flow rates even in July 2008.
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federal licensing agreement, PPL Montana donated $ 1.2 million in 2011 to fund 41 conservation projects along the
Missouri and Madison rivers. These included a project to restore and enhance riverside vegetation along a 4.5-mile (7.2 km) stretch of the Missouri River just below Holter Dam (vegetation helps cool the water, enhancing trout populations), a study of hatchery-raised rainbow trout survival rates in Holter Lake, and a study of walleye feeding habits below Holter Dam.
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May 2004, the dam was permitting only 3,500 cubic foot (99 m) to 3,000 cubic foot (85 m) per second downriver. These flows were well below the 4,100 cubic foot (120 m) per second needed to keep the fishery healthy. The low water flows, coupled with whirling disease, led to a 40 percent drop in big fish (those over 17 inches (430 mm) in length) as well as lower overall numbers of fish immediately below the dam. A 2005 proposal by the managers of the
1054:. These pressures led state wildlife managers to implement in March 2002 limits on the catch of rainbow trout on this part of the Missouri River. By 2002, fishing levels just below Holter Dam had doubled from their 1993 levels. This section of the Missouri River was now the most heavily fished body of water in the state. In 2009 and 2010, a fungal disease killed large numbers of mature brown trout below Holter Dam.
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numbers of trout below Holter Dam due to several high-volume years of cold water in the
Missouri River. The state counted an average number of 6,034 rainbow trout 10 inches (25 cm) or longer per mile (the long-term average was 3,036 per mile). It was the second-highest count on record. An estimated 20 percent of the fish were hatchery-raised trout, however. The state counted 4,429 wild trout per mile.
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294:). In 1905, Hauser and other directors of the Missouri River Power Company formed the Helena Power Transmission Company (also known as the "Helena Power and Transmission Company"). The two companies merged on February 16, 1906, to form the United Missouri River Power Company. The merged company completed Hauser Dam on February 12, 1907. The dam was a
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355:-based firm, was the construction company. But cost overruns, waning investor enthusiasm, and the liability associated with the collapse of Hauser Dam nearly drove Samuel Hauser (United Missouri's largest shareholder) into bankruptcy. Amalgamated Copper, which bought 75 percent of United Missouri's power and owned $ 1 million of its
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housing for the dam's operators. Two more homes were built for operators after construction ended. Montana Power spent $ 1.3 million in 1916 and $ 1.5 million in 1917 to finish the dam. Holter was completed and brought online for power generation in 1918. It was the sixth and last dam completed by the company in that decade.
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In
October 2011, the state set the limit on trout caught below Holter Dam at three trout per day, only one of which could be over 18 inches (46 cm) in length, and only one of which could be a brown trout. These limits are in effect from 2012 to 2015. In December 2011, the state reported improved
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has also affected the dam's operation. No water was permitted to flow over the dam in 1986 due to drought. In 1992, water flowed over the dam's crest on only a single day. In wetter years, water flows over the dam almost continuously. A severe drought struck the state of
Montana beginning in 1999. By
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as part of their 1997 relicensure, however. This document led to new guidelines, adopted by PPL, which requires the dam's owner to not only continue to operate Holter Dam as a run-of-the-river dam but also to maintain water levels behind the dam within a certain range. In
January 2011, as part of its
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traversed the
Missouri River through this area. Although the Missouri River once ran swiftly through the Gates of the Mountains, Holter Dam drastically reduced the flow of water so that now the area has almost no current. Water levels in the Gates are now 14 feet (4.3 m) higher than they were in
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for Main. The major change implemented by Main and
Herrick was to install vertical rather than horizontal turbines, although some changes were made to the wastewater system and the dam's downstream face. Stone & Webster continued to be the construction company, and more than 500 men worked on the
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were washing over Holter Dam into the blue-ribbon trout fishery below the dam. Walleyes are predatory fish that eat small trout and yellow perch, and there were calls to alter the overflow procedures at Holter Dam to prevent walleye from escaping into the lower parts of the Missouri River. In 2010,
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In June 1999, Montana Power proposed lowering the level of Holter Lake by 16 feet (4.9 m) for six weeks so that the flashboards could be repaired and replaced. Public criticism of the drawdown was extensive, but Montana Power insisted that it go ahead. But in August 1999, Montana Power put its
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flow over and through Holter Dam as of 2005 was 7,610 cubic foot (215 m) per second. Flows into Holter Lake and over Holter Dam are generally considered to be controlled by flows from Canyon Ferry Dam. The total annual discharge from Holter Dam between 1929 and 1988 was an average of 3,700,000
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this evening we entered much the most remarkable clifts that we have yet seen. these clifts rise from the waters edge on either side perpendicularly to the height of 1200 feet. ... the river appears to have forced its way through this immense body of solid rock for the distance of 5-3/4 Miles ... I
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Flashboards are a system of wooden or metal panels which can be raised or lowered to allow excess water to pass over the crest of the dam. A series of metal frames holds the flashboards in place. Placing more than one flashboard on top of the other allows the dam's height to be temporarily raised.
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On November 2, 1999, Montana Power announced it was selling all of its dams and other electric power generating plants to PPL, Inc. for $ 1.6 billion. The sale was expected to generate $ 30 million in taxes for the state of Montana (although MPC said the total would be lower). Subsequently, in May
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at Holter Lake: Beartooth Landing (accessible only by boat; no land access), Holter Lake, Log Gulch, and Departure Point. BLM also controls access to the river below Holter Dam. BLM reconstructed the Holter Dam Campground in 2007. Conservation projects are also underway at Holter. As part of its
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to draw down Holter Lake by 2 feet (0.61 m) in August 2005 in order to repair Coulter Campground near the Gates of the Mountains had fishermen and recreational outfitters angry due to the likely side-effects on the downstream fishery. But a 2006 study by state wildlife biologists found that,
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for unmarried men, cottages for married men, a dining hall, a bathing house, storage sheds, garages, a photography studio, school, hospital, and sewer. Although most of the structures were tents or wooden buildings intended for short-term use, seven of the structures were renovated into permanent
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Northern pike are also a problem in Holter Lake. The fish has long been present in small numbers in the lake, where it consumes more desirable native species like burbot, brown trout, and cuttrout trout. In March 2011, the Montana Department of Fish, Wildlife and Parks (FWP) set no limit on the
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Great Falls Power Company. Construction on Holter Dam was halted in late 1910 after only part of the foundation had been poured. Hauser sold his interest in United Missouri River Power to Ryan, who on October 25, 1912, merged United Missouri River Power with the Butte Electric and Power Company,
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Silt, mud, and other fine sediment accumulate on riverbeds when water flows are not strong enough to carry them away. These sediments interfere with the life-cycle of aquatic insects that some fish eat. A "flush" occurs when water flows are strong enough to remove these sediments and move them
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on either side of the river. On April 14, 1908, Hauser Dam failed after water pressure undermined the masonry footings (the steel dam itself being structurally sound). United Missouri River Power began reconstruction of Hauser Dam in July 1908 (completing the dam in the spring of 1911).
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of power. Aside from the powerhouse and water intakes, the dam has three sections: a central section where water is permitted to flow over the dam, and a left and right section anchored to the bedrock where water is not able to flow over the dam. The dam incorporated
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which had nearly ruined him financially. In his early 60s, Hauser began to rebuild his finances by branching out into the relatively new industry of hydroelectric power generation. In 1894, he formed the Missouri River Power Company, and won the approval of the
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The United Missouri River Power Company had begun construction of Holter Dam in 1908 before the failure of Hauser Dam. Hauser had conceived of a dam at the present location in 1906 to supply the newly formed Amalgamated Copper Mining Company (a forerunner to
319:, president of the Helena Transmission Power Company and by 1908 a director of the United Missouri River Power Company. Hauser formed a subsidiary, the Capital City Improvement Company, to seek investment money and build the dam for the power company.
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As of 1994, Holter Dam, its powerhouse, its nearby operator housing and abandoned construction camp, its railroad switchyard, and the nearby maintenance buildings are one of the most intact historic hydroelectric generating facilities in Montana.
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Holter Dam raised the water level behind it by about 100 feet (30 m), creating the 24-mile (39 km) long Holter Lake (also known as Holter Reservoir). Holter Lake has a surface area of 4,800 acres (1,900 ha). The lake has a
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In its original configuration, Holter Dam was expected to be 1,350 feet (410 m) long and 110 feet (34 m) high, but ended up being slightly larger. At the time, Holter was the tallest hydroelectric dam on the Missouri River. The
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Holter Lake has been described by one recreational guide as "the most awe-inspiring of the three upper Missouri Lakes." The reservoir is surrounded by the Beartooth Wildlife Management Area, Gates of the Mountains Game Preserve,
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depth of 50 feet (15 m) and a maximum depth of 121 feet (37 m). Holter Lake stores 243,000 acre-feet (300,000,000 m) of water when full. The distance between Hauser Dam and Holter Lake is 4.6 miles (7.4 km).
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to drain the water around the flashboards and allow their repair without lowering the level of the lake. The cost of using the cofferdams was $ 300,000. Twenty-one of the dam's 31 flashboards were replaced.
1065:, and representatives of agricultural irrigators and sportsmen managed Holter Dam to optimize recreation and to minimize negative impacts on fish and wildlife. The dam's owners were required to conduct an
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Raising the flashboard can permit water to pass beneath the flashboard and over the dam, alleviating stress on the dam. The higher the flashboard is raised, the more water passed beneath and over the dam.
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that would require the state of Montana to buy all of PPL's hydroelectric dams, including Holter Dam. Montana voters rejected the initiative in November 2002. Also in 2001, Holter Dam participated in an
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rivers, which included restoring and increasing riverside vegetation along 4.5 miles (7.2 km) of the Missouri River below Holter Dam and a study of the walleye feeding habits below Holter Dam.
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nearby. Birds of prey can routinely be seen plucking fish from Holter Lake and the Missouri River below the dam. An open-air tourboat offers river-based tours of the Gates of the Mountains. The
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According to Montana wildlife officials, "Holter Reservoir has historically been one of the most diverse and productive multi-species fisheries in the state." Rainbow trout, kokanee salmon,
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Holter Lake has two parts, dubbed upper Holter Lake and lower Holter Lake. The central section of the lake is a narrow, 5-mile (8.0 km) neck, marked at its downstream end by the
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was confirmed in the Missouri River below Holter Dam. Fishing on the 15-mile (24 km) stretch of Missouri River below Holter Dam doubled between 1989 and 1999, according to the
2814:"Holter Hydroelectric Facility." HAER No. MT-94-A/HAER MONT 25-WOCRE-1A. Rocky Mountain Regional Office. Historic American Engineering Record. National Park Service. November 1994.
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Holter Dam was relicensed by the federal government in 1997. Until that year, a steering committee composed of state fish and wildlife experts, the Montana Power Company, the
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While effective at generating electricity, well-designed, and well-engineered, Holter Dam is considered an exceptionally unpleasant structure visually. In 1927, however, the
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United States Shipping Board Emergency Fleet Corporation. Hearings before the Committee on Commerce, United States Senate, Sixty-fifth Congress, Second Session, on S. 170.
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were also abundant below the dam, but increasing number of walleye and increased water flows have reduced these populations to as little as 4 percent of historic levels.
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are commonly caught here, and trout weighing 10 pounds (4.5 kg) or more have been caught. Many fish are 18 inches (460 mm) or longer. Rainbow trout outnumber
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The public used to be able to walk across the top of Holter Dam (which provided easy access to both sides of the river), but the dam was closed to the public after the
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for the turbines. The 1916-1918 construction camp was the largest ever built by Montana Power. There were more than 115 buildings at the construction site, including a
220:, in the United States. The dam, which was built between 1908 and 1918, is 1,364 feet (416 m) long and 124 feet (38 m) high. The reservoir formed by the dam,
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The Province and the States, A History of the Province of Louisiana Under France and Spain, and of the Territories and States of the United States Formed Therefrom.
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Billings and Eastern Montana Power Company, and Madison River Power Company to form the Montana Power Company. Montana Power took over not only United Missouri's
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1522:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 2, 5.
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1706:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 1.
1630:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 7.
1621:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 6.
1482:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 5.
1430:"Holter Hydroelectric Facility," HAER No. MT-94-A/HAER MONT 25-WOCRE-1A, Historic American Engineering Record, National Park Service, November 1994, p. 2.
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here by a 6:1 ratio. At Holter Lake, rainbow trout weighing 3 pounds (1.4 kg) are commonly caught. There are also stable, significant populations of
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Sears, James W. and Hendrix, Marc S. "Lewis and Clark Line and the Rotational Origin of the Alberta and Helena Salients, North American Cordillera." In
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Today, Holter Dam and Holter Lake are a popular recreational area for boating, fishing, hiking, and camping. Just below Holter Dam is the
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Management of the fishery immediately downstream of Holter Dam necessarily involves management of the dam and reservoir. In autumn 1996,
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are 24 to 32 feet (7.3 to 9.8 m) below the water level when the reservoir is full. The dam had four vertical single-runner 15,000-
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Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 65-78; "FWP Commission Adopts Upper Missouri River Reservoirs Plan."
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Sears and Hendrix, "Lewis and Clark Line and the Rotational Origin of the Alberta and Helena Salients, North American Cordillera," in
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680:. Holter Dam was one of the last two such PPL dams to be closed. In 2014, PPL sold Holter Dam and their other Montana dams to
3106:
Guide to the Papers of John Ripley Freeman. Massachusetts Institute of Technology. Institute Archives and Special Collections
2475:"FWP to Move Forward With Northern Pike Suppression Project." Montana Department of Fish, Wildlife and Parks. March 22, 2012.
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Montana Power resumed building the structure in March 1916. The reason for resuming construction was to supply power to the
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2484:"Montana 2012-2015 Fishing Regulation Changes Approved." Montana Department of Fish, Wildlife and Parks. October 21, 2011.
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Ralph E. DeCamp to depict Holter Dam as one of four mural paintings to hang in the state's Law Library (located in the
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In addition to his work on Holter Dam, Herrick also worked on the reconstructed Hauser Dam, Thompson Falls Dam, and
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into the crest of the dam to permit overflow. The dam has 31 flashboards, each of them 16 feet (4.9 m) high.
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2441:"Montana Fishing Regulation Revisions for 2011." Montana Department of Fish, Wildlife and Parks. April 28, 2011.
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management efforts, PPL agreed to donate $ 1.2 million to fund 41 conservation projects along the Missouri and
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forms much of the surface rock through which the Missouri River flows at Holter Dam. The limestone is rich in
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In November 2001, citizens of Montana upset with energy price increases announced by PPL sought passage of a
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Montana Fish, Wildlife and Parks Commission. Montana Department of Fish, Wildlife and Parks. May 13, 2010.
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387:) was hired to revisit the design. Henry A. Herrick, an employee of the power company, was the consulting
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United States Congress. Senate Committee on Commerce. Washington, D.C.: Government Printing Office, 1918.
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because it can generate electricity without needing to store additional water supplies behind the dam.
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3118:(HAER) documentation, filed under End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT:
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The Missouri River runs free for 90 miles (140 km) between Holter Dam and the five dams at
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The Gates of the Mountains has been tourist attraction since the period 1886 to 1906, when the
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Aviva J. Sussman and Arlo B. Weil, eds. Washington, D.C.: Geological Society of America, 2004.
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A rainbow trout, the most popular and abundant sport fish below Holter Dam and in Holter Lake.
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Interior of the Holter Dam powerhouse in 1994. Generating turbine No. 1 is in the foreground.
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1174:(BLM) manages much of the surrounding public lands as a Recreation Area. BLM maintains four
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Aarstad, Rich; Arguimbau, Ellen; Baumler, Ellen; Porsild, Charlene L.; and Shovers, Brian.
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December 10, 1997; Anez, "PP&L Global Buying Montana Power Plants for $ 1.6 Billion,"
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The Complete Paddler: A Guidebook to the Missouri River From the Headwaters to St. Louis.
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Malby, Andy. "FWP Seeks Input On Plan to Remove Northerns From Missouri, Feeder Rivers."
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The Complete Paddler: A Guidebook to the Missouri River From the Headwaters to St. Louis,
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Evaro, Donna. "FWP Seeks Comments on Fishing Regulations for Season Starting in March."
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May 25, 2000; "PPL Montana Says Repairs to Holter Dam Will Cause Minimal Disruption,"
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training exercise which, in part, planned for the catastrophic failure of Holter Dam.
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Holter Lake circa the early 2000s, with the Holter Lake Campground in the foreground.
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Herbert, Tony and McKelvey, Conn. "Plan Could Harm World-Class Wild Trout Fishery."
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to build a dam 2 miles (3.2 km) below Stubbs' Ferry (which later was known as
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Lewis' woodpecker, a bird first identified near where Holter Dam is located today.
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Building the Ultimate Dam: John S. Eastwood and the Control of Water in the West.
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October 3, 2001; Anez, "One-Rainbow Limit Imposed on Section of Missouri River,"
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Building the Ultimate Dam: John S. Eastwood and the Control of Water in the West,
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Proceedings of the Second War Convention, National Electric Light Association.
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The Battle for Butte: Mining and Politics on the Northern Frontier, 1864-1906.
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Babcock, Michael. "Missouri Trout Population Decline Not As Steep As Feared."
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Proceedings of the Second War Convention, National Electric Light Association,
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The Battle for Butte: Mining and Politics on the Northern Frontier, 1864-1906,
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Auchly, Bruce. "Burbot Anglers Count on Ugly Fish's Wander and Lust Plight."
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Anez, Bob. "PP&L Global Buying Montana Power Plants for $ 1.6 Billion."
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Babcock, "Whirling Disease Is In the River, But Effect Remains to Be Seen,"
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Montana Power shut down electrical generation at Holter Dam in 1984 after a
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Pictures of Holter Dam construction at the "Helena As She Was" history site
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Fishing Montana: An Angler's Guide to the Big Sky's Best Streams and Lakes.
2728:"The Capital City Power Plant of the United Missouri River Power Company."
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Fishing Montana: An Angler's Guide to the Big Sky's Best Streams and Lakes,
1603:"The Capital City Power Plant of the United Missouri River Power Company,"
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Between upper and lower Holter Lake, near the Gates of the Mountains, lies
28:
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Conveniences Sorely Needed: Montana's Historic Highway Bridges, 1860-1956.
2572:"Agency to Consider Catch-and-Release Only for Rainbow on River Section."
2205:"Agency to Consider Catch-and-Release Only for Rainbow on River Section,"
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Conveniences Sorely Needed: Montana's Historic Highway Bridges, 1860-1956,
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2959:"PPL Montana Says Repairs to Holter Dam Will Cause Minimal Disruption."
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Babcock, Michael. "Holter Dam Repair Will Be Tough on Area Businesses."
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Herbert and McKelvey, "Plan Could Harm World-Class Wild Trout Fishery,"
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August 9, 2001; Perez, "Catch-and-Release Policy Discussed in Meeting,"
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Holter Dam was built by the United Missouri River Power Company and the
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Gallagher, Susan. "Drive to Buy Montana Hydroelectric Dams Announced."
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trout fishing section of the Missouri River. Five-pound (2.27 kg)
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Orogenic Curvature: Integrating Paleomagnetic and Structural Analyses.
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Colony and Empire: The Capitalist Transformation of the American West.
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Auchly, "Burbot Anglers Count on Ugly Fish's Wander and Lust Plight,"
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Orogenic Curvature: Integrating Paleomagnetic and Structural Analyses,
1511:
Colony and Empire: The Capitalist Transformation of the American West,
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2579:
Anez, Bob. "One-Rainbow Limit Imposed on Section of Missouri River."
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Babcock, "Missouri Trout Population Decline Not As Steep As Feared,"
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October 11, 1999; Roskelley, "Whirling Disease Continues Its Purge,"
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Greyson Shale over much younger Madison Limestone and is part of the
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3997:
3034:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019.
2397:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
2166:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 69.
2164:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
2151:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 13.
2149:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
1914:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 14.
1912:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
1732:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
1288:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
1271:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 11.
1269:
Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,
3193:
1734:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 7.
1290:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 9.
2952:
Perez, Jennifer. "Catch-and-Release Policy Discussed in Meeting."
1076:
724:
709:
has also photographed the dam, and exhibited this work in 1997 in
628:
585:
531:
456:
274:
2272:
Babcock, Michael. "PPL to Give $ 1.2 Million to River Projects."
2940:
The Comical History of Montana: A Serious Story for Free People.
2013:
Gallagher, "Drive to Buy Montana Hydroelectric Dams Announced,"
1361:
The Comical History of Montana: A Serious Story for Free People,
1151:
642:
615:
544:. The Gates of the Rocky Mountains were first recorded when the
498:
437:
302:
footings on top of gravel, with the ends of the dam anchored in
262:
3878:
3197:
3188:", 7 photos, 8 data pages, 2 photo caption pages
3139:", 6 photos, 15 data pages, 1 photo caption page
3132:", 6 photos, 15 data pages, 1 photo caption page
2351:
downstream. See: Babcock, "Fill 'Em Up! We Can Use the Water,"
1928:
Babcock, "Holter Dam Repair Will Be Tough on Area Businesses,"
281:, but had encountered a series of financial setbacks after the
3181:", 5 photos, 5 data pages, 1 photo caption page
3174:", 5 photos, 5 data pages, 1 photo caption page
3167:", 7 photos, 6 data pages, 1 photo caption page
3160:", 6 photos, 8 data pages, 1 photo caption page
3153:", 8 photos, 8 data pages, 1 photo caption page
3146:", 8 photos, 8 data pages, 1 photo caption page
2535:"BLM Recreation Sites on Holter and Hauser Lakes Open Today,"
1587:
United States Shipping Board Emergency Fleet Corporation. ...
1139:
209:
206:
2859:
Lambert, Kirby; Burnham, Patricia Mullan; and Near, Susan R.
2709:"BLM Recreation Sites on Holter and Hauser Lakes Open Today."
2680:
Babcock, Michael. "Most Heavily Fished? The Blue Ribbon Mo."
2217:
November 8, 2001; Babcock, "Trout Limit Placed on Missouri,"
2924:"MPC Casts Doubt on $ 30 Million Tax Payment on Dam Sales."
2757:"Fishing Pressure on Missouri, Yellowstone Rising Rapidly."
2750:"Fishing Access to All PPL Dams in Montana Now Prohibited."
2569:
Helena, Mont.: Montana Historical Society Press Press, 2009.
2192:"Fishing Pressure on Missouri, Yellowstone Rising Rapidly,"
2073:"Fishing Access to All PPL Dams in Montana Now Prohibited,"
2000:"MPC Casts Doubt on $ 30 Million Tax Payment on Dam Sales,"
626:
The wooden flashboards of Holter Dam were replaced in 1972.
4038:
Buildings and structures in Lewis and Clark County, Montana
2740:
Stevensville, Mont.: Stoneydale Press Publishing Co., 1999.
2425:
Byron, Eve. "Compromise Approved in Trout-Walleye Battle."
368:
and Hauser Dam but the partially built Holter Dam as well.
2617:
Babcock, Michael. "Agency to Increase Flow of Mighty Mo."
2256:
Auchly, Bruce. "Life Isn't Easy for Revered Brown Trout."
536:
The Madison limestone walls of the Gates of the Mountains.
2268:
2266:
2847:
Lewis and Clark on the Great Plains: A Natural History.
2638:
Babcock, Michael. "Fill 'Em Up! We Can Use the Water."
1720:
Lewis and Clark on the Great Plains: A Natural History,
606:. Today, Mann Gulch is most commonly reached by boat.
2978:
National Electric Light Association, June 13-14, 1918.
2863:
Helena, Mont.: Montana Historical Society Press, 2002.
2799:"Holter Dam Campground to Soon Close for the Season."
2624:
Babcock, Michael. "Big Holter-Area Rainbow on Rocks."
2614:
Helena, Mont.: Montana Historical Society Press, 2005.
2548:"Holter Dam Campground to Soon Close for the Season,"
3059:
Mesilla, N.M.: New Mexico Geographical Society, 2000.
3017:
Shors, Benjamin. "Holter Lake Draining to Go Ahead."
2945:
Newhouse, Eric. "Anglers Praise Holter Dam Repairs."
2909:"Montana Power Earnings Show Great Business Growth."
2806:"Holter Drawdown Causes Grumbling Among Lake Users."
2743:
Dennison, Mike. "A New Plan for Holter Dam Repairs."
2701:
Berg, Christian. "Montanans Reject Buying PPL Dams."
1957:"Holter Drawdown Causes Grumbling Among Lake Users,"
1556:"Montana Power Earnings Show Great Business Growth,"
1097:
More recently, in 2009 wildlife experts worried that
3186:
Holter Hydroelectric Facility, Dam & Power House
2854:
Journal of the Association of Engineering Societies.
2775:
Madison, Wisc.: Weston Historical Association, 1904.
2687:
Babcock, Michael. "Trout Limit Placed on Missouri."
2363:
2361:
2243:
Babcock, "Most Heavily Fished? The Blue Ribbon Mo,"
1348:
Journal of the Association of Engineering Societies,
3561:
3443:
3400:
3339:
3247:
2986:
Belgrade, Mont.: Wilderness Adventures Press, 2005.
2673:Babcock, Michael. "Mo Flourishes After the Flush."
182:
169:
164:
156:
151:
143:
135:
125:
120:
110:
102:
94:
57:
46:
38:
21:
3000:3rd ed. Guilford, Conn.: Globe Pequot Press, 1998.
2849:Lincoln, Neb.: University of Nebraska Press, 2003.
2823:Norman, Okla.: University of Oklahoma Press, 2005.
1953:
1951:
1552:
1550:
1548:
1546:
1544:
359:, now began buying its power from Hauser's rival,
2993:Lawrence, Kan.: University Press of Kansas, 1994.
2891:Berkeley, Calif.: Avalon Travel Publishing, 2009.
2337:Babcock, "Agency to Increase Flow of Mighty Mo,"
1891:
1889:
3165:Holter Hydroelectric Facility, Mechanic's Garage
2833:Johnson, Charles S. "MPC to Sell Power Plants."
2789:Helena, Mont.: Independent Publishing Co., 1912.
4058:Historic American Engineering Record in Montana
3179:Holter Hydroelectric Facility, Three-Car Garage
3041:Van Swearingen, Hugh. "Fires Strike the West."
2720:"Burbot, Stonecat Fisheries Study Wrapped Up."
2455:
2453:
2451:
2449:
2447:
2115:"Burbot, Stonecat Fisheries Study Wrapped Up,"
1924:
1922:
1920:
1693:Newhouse, "Anglers Praise Holter Dam Repairs,"
1673:Dennison, "A New Plan for Holter Dam Repairs,"
1166:in the area. Meriwether Lewis first identified
557:
261:from 1885 to 1887, had had a lengthy career in
3172:Holter Hydroelectric Facility, Four-Car Garage
2884:Seattle: University of Washington Press, 2006.
1052:Montana Department of Fish, Wildlife and Parks
3890:
3209:
2919:Sci-Tech Archives and Manuscript Collections.
2780:International Directory of Company Histories.
2631:Babcock, Michael. "Canyon Ferry Filling Up."
2493:Babcock, Michael. "Fish Flourish in the Mo."
2298:Babcock, "Big Holter-Area Rainbow on Rocks,"
2053:
2051:
2049:
1641:International Directory of Company Histories,
1454:Sci-Tech Archives and Manuscript Collections,
1300:
1298:
1296:
8:
3101:Holter Dam page on the PPL corporate website
2861:Montana's State Capitol: The People's House.
2088:Montana's State Capitol: The People's House,
1746:
1744:
1742:
1740:
1714:
1712:
1530:
1528:
1228:
1226:
1224:
1222:
1220:
1218:
1216:
1214:
1212:
1114:rivers to Holter Dam on the Missouri River.
656:2000 PPL announced it would use small steel
3125:", 3 photos, 1 photo caption page
2567:Montana Place Names From Alzada to Zortman.
2437:
2435:
1970:Shors, "Holter Lake Draining to Go Ahead,"
1774:
1772:
1770:
1768:
1766:
1764:
1762:
1760:
1689:
1687:
1669:
1667:
1665:
1663:
1661:
1659:
1573:. See: "Report of Committee on Memorials,"
1492:
1490:
1488:
1408:
1406:
1234:Montana Place Names From Alzada to Zortman,
721:Recreational aspects and fishery management
560:called it the gates of the rocky mountains.
3897:
3883:
3875:
3216:
3202:
3194:
3158:Holter Hydroelectric Facility, House No. 7
3151:Holter Hydroelectric Facility, House No. 4
3144:Holter Hydroelectric Facility, House No. 1
3137:Holter Hydroelectric Facility, House No. 2
3130:Holter Hydroelectric Facility, House No. 8
3057:Montana Places: Exploring Big Sky Country.
2367:Babcock, "Mo Flourishes After the Flush,"
2159:
2157:
2144:
2142:
2140:
2138:
2026:Berg, "Montanans Reject Buying PPL Dams,"
1907:
1905:
1862:
1860:
1858:
1856:
1848:Montana Places: Exploring Big Sky Country,
1819:Montana Places: Exploring Big Sky Country,
1780:Montana Places: Exploring Big Sky Country,
1599:
1597:
1595:
1264:
1262:
763:
315:) with electricity. The dam was named for
27:
18:
2866:Lee, Sonja. "Preparing for the Big One."
2652:Babcock, Michael. "It's Fishing Season."
2111:
2109:
2069:
2067:
1941:Van Swearingen, "Fires Strike the West,"
1329:
1327:
1260:
1258:
1256:
1254:
1252:
1250:
1248:
1246:
1244:
1242:
377:Chicago, Milwaukee, and St. Paul Railroad
216:about 45 miles (72 km) northeast of
2873:Lomax, Becky. "Gates Open to Paddlers."
2738:Lewis & Clark on the Upper Missouri.
1829:
1827:
1617:
1615:
1613:
1498:Lewis & Clark on the Upper Missouri,
1478:
1476:
1474:
1472:
1470:
1468:
1466:
1426:
1424:
1422:
1414:Lewis & Clark on the Upper Missouri,
1283:
1281:
1279:
1277:
596:. The incident is the subject of author
4043:Energy infrastructure completed in 1918
3014:Westport, Conn.: Greenwood Press, 2004.
2531:
2529:
2379:
2377:
1375:
1373:
1371:
1369:
1187:
436:, and was capable of generating 40,000
3052:New York: John Wiley & Sons, 1918.
2966:Puckett, Karl. "The Pelican Puzzler."
2898:Helena, Mont.: Farcountry Press, 2005.
2698:Helena, Mont.: Farcountry Press, 2003.
2696:Fly Fishing: Montana's Missouri River.
1306:Fly Fishing: Montana's Missouri River,
4018:Hydroelectric power plants in Montana
2593:Artner, Alan G. "Shibata's America."
1983:Johnson, "MPC to Sell Power Plants,"
778:
775:
772:
769:
509:. Holter Lake sits atop the Eldorado
482:Geology beneath and around Holter Dam
383:company (whose Western Office was in
7:
3116:Historic American Engineering Record
3050:The Design and Construction of Dams.
2974:"Report of Committee on Memorials."
2659:Babcock, Michael. "Missouri River."
1895:Babcock, "Canyon Ferry Filling Up,"
1398:The Design and Construction of Dams,
1128:Sleeping Giant Wilderness Study Area
1059:United States Bureau of Reclamation
618:generating capacity. The long-term
373:Butte, Anaconda and Pacific Railway
2852:King, Ernest W. "Annual Address."
2039:Lee, "Preparing for the Big One,"
623:acre-feet (4.6 km) per year.
14:
1833:Lomax, "Gates Open to Paddlers,"
1124:Gates of the Mountains Wilderness
548:passed through the area in 1805.
3996:
3858:
3425:Regional designations of Montana
3085:
3071:
2519:Puckett, "The Pelican Puzzler,"
2230:Babcock, "It's Fishing Season,"
1319:The Province and the States ...
1130:. There are abundant numbers of
614:As of 2010, Holter Dam had a 50
592:, which claimed the lives of 13
2942:San Diego: E.L. Scofield, 1912.
2830:Brookfield, Vt.: Ashgate, 1997.
2782:Chicago: St. James Press, 2007.
753:below the dam. Until recently,
51:Lewis and Clark County, Montana
4063:1918 establishments in Montana
2887:McRae, W.C. and Jewell, Judy.
1198:. Carbon Monitoring for Action
1067:environmental impact statement
1:
4033:NorthWestern Corporation dams
3123:Holter Hydroelectric Facility
2984:Flyfisher's Guide to Montana.
2099:Artner, "Shibata's America,"
2059:Flyfisher's Guide to Montana,
2086:Lambert, Burnham, and Near,
1063:United States Forest Service
2285:Babcock, "Missouri River,"
646:electric power transmission
4079:
4028:Dams on the Missouri River
2921:New York: Routledge, 1989.
2771:Goodspeed, Weston Arthur.
2427:Helena Independent Record.
715:Museum of Contemporary Art
546:Lewis and Clark Expedition
3994:
3913:
3854:
3267:Congressional delegations
3235:
2181:Spokane Spokesman-Review,
1396:1997, p. 65-66; Wegmann,
1172:Bureau of Land Management
991:Westslope Cutthroat Trout
588:was the site of the 1949
26:
3184:HAER No. MT-94-I, "
3177:HAER No. MT-94-H, "
3170:HAER No. MT-94-G, "
3163:HAER No. MT-94-F, "
3156:HAER No. MT-94-E, "
3149:HAER No. MT-94-D, "
3142:HAER No. MT-94-C, "
3135:HAER No. MT-94-B, "
3128:HAER No. MT-94-A, "
1346:King, "Annual Address,"
682:NorthWestern Corporation
555:wrote on July 19, 1805:
115:NorthWestern Corporation
3093:Renewable energy portal
2931:"MPC Properties Sold."
2703:Allentown Morning Call.
2028:Allentown Morning Call,
1879:"MPC Properties Sold,"
1560:April 28, 1917, p. 817.
394:S. Morgan Smith Company
327:(he also worked on the
171:Installed capacity
147:1,364 feet (416 m)
95:Construction began
4048:Dams completed in 1918
3121:HAER No. MT-94, "
1456:1989, p. 49; Jackson,
1091:Helena National Forest
1082:
730:
652:repair plans on hold.
634:
562:
542:Gates of the Mountains
537:
528:Gates of the Mountains
462:
288:United States Congress
230:"run-of-the-river" dam
184:Annual generation
79:46.99167°N 112.00583°W
3420:Glacier National Park
3010:Shearer, Benjamin F.
1460:2005, p. 285, fn. 33.
1080:
728:
697:Montana State Capitol
632:
535:
460:
430:electrical generators
329:Hetch Hetchy Aqueduct
247:Montana Power Company
3038:Accessed 2010-06-13.
3019:Great Falls Tribune.
2989:Robbins, William G.
2968:Great Falls Tribune.
2954:Great Falls Tribune.
2947:Great Falls Tribune.
2901:"Montana in Short."
2875:Great Falls Tribune.
2868:Great Falls Tribune.
2816:Accessed 2010-06-15.
2801:Great Falls Tribune.
2794:Great Falls Tribune.
2745:Great Falls Tribune.
2722:Great Falls Tribune.
2694:Badovinac, Trapper.
2689:Great Falls Tribune.
2682:Great Falls Tribune.
2675:Great Falls Tribune.
2668:Great Falls Tribune.
2661:Great Falls Tribune.
2654:Great Falls Tribune.
2647:Great Falls Tribune.
2640:Great Falls Tribune.
2633:Great Falls Tribune.
2626:Great Falls Tribune.
2619:Great Falls Tribune.
2605:Great Falls Tribune.
2550:Great Falls Tribune,
2537:Great Falls Tribune,
2521:Great Falls Tribune,
2495:Great Falls Tribune.
2466:Accessed 2011-09-30.
2414:Great Falls Tribune.
2401:Great Falls Tribune.
2385:Great Falls Tribune,
2369:Great Falls Tribune,
2353:Great Falls Tribune,
2339:Great Falls Tribune,
2326:Great Falls Tribune,
2311:"Montana in Short,"
2300:Great Falls Tribune,
2287:Great Falls Tribune,
2274:Great Falls Tribune.
2258:Great Falls Tribune.
2245:Great Falls Tribune,
2232:Great Falls Tribune,
2219:Great Falls Tribune,
2211:Great Falls Tribune,
2177:Great Falls Tribune,
2130:Great Falls Tribune,
2117:Great Falls Tribune,
2041:Great Falls Tribune,
1972:Great Falls Tribune,
1930:Great Falls Tribune,
1897:Great Falls Tribune,
1835:Great Falls Tribune,
1695:Great Falls Tribune,
1675:Great Falls Tribune,
678:September 11 attacks
671:emergency management
641:destroyed a 100,000-
610:Operation of the dam
476:Great Falls, Montana
341:Los Angeles Aqueduct
255:Territorial Governor
251:Samuel Thomas Hauser
139:124 feet (38 m)
84:46.99167; -112.00583
16:Dam in Montana, U.S.
3331:Tourist attractions
3319:The Last Best Place
2949:September 18, 2000.
2880:Malone, Michael P.
2826:Jackson, Donald C.
2819:Jackson, Donald C.
2713:Great Falls Tribune
1697:September 18, 2000.
1350:March 1906, p. 103.
1321:, 1904, p. 452-454.
766:
689:Montana Legislature
513:, which juxtaposes
349:Stone & Webster
321:John Ripley Freeman
75: /
3865:Montana portal
3012:Louisiana to Ohio.
2970:September 9, 1999.
2844:Johnsgard, Paul A.
2840:December 10, 1997.
2768:November 20, 2001.
2730:Engingeering News.
2628:December 19, 2004.
2523:September 9, 1999.
2506:McRae and Jewell,
2497:December 15, 2011.
2302:December 19, 2004.
2260:December 16, 2010.
2017:November 20, 2001.
1866:McRae and Jewell,
1817:Quoted in Wright,
1605:Engingeering News,
1335:Louisiana to Ohio,
1168:Lewis's woodpecker
1083:
912:Mountain Whitefish
764:
731:
635:
603:Young Men and Fire
538:
463:
398:York, Pennsylvania
33:Holter Dam in 1918
4005:
4004:
3872:
3871:
3048:Wegmann, Edward.
3043:Associated Press.
2996:Sample, Michael.
2961:Associated Press.
2938:Murphy, Jerre C.
2935:November 2, 1998.
2933:Associated Press.
2926:Associated Press.
2911:Electrical World.
2903:Associated Press.
2894:Miller, David L.
2808:Associated Press.
2796:October 21, 2009.
2766:Associated Press.
2759:Associated Press.
2752:Associated Press.
2705:November 7, 2002.
2691:November 9, 2001.
2670:December 3, 2006.
2607:February 4, 2010.
2600:October 31, 1997.
2590:November 2, 1998.
2588:Associated Press.
2583:November 8, 2001.
2581:Associated Press.
2574:Associated Press.
2510:2009, p. 200-201.
2387:October 21, 2009.
2328:December 3, 2006.
2313:Associated Press,
2276:January 14, 2011.
2221:November 9, 2001.
2215:Associated Press,
2207:Associated Press,
2194:Associated Press,
2132:February 4, 2010.
2103:October 31, 1997.
2075:Associated Press,
2030:November 7, 2002.
2015:Associated Press,
2002:Associated Press,
1991:November 2, 1998.
1989:Associated Press,
1959:Associated Press.
1943:Associated Press,
1883:November 2, 1998.
1881:Associated Press,
1795:2004, p. 179-180.
1679:Associated Press,
1558:Electrical World,
1232:Aarstad, et al.,
1037:
1036:
666:ballot initiative
487:Madison Limestone
333:Charles River Dam
196:
195:
121:Dam and spillways
103:Opening date
4070:
4000:
3988:Gavins Point Dam
3983:Fort Randall Dam
3923:Canyon Ferry Dam
3899:
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3885:
3876:
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3861:
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3204:
3195:
3095:
3090:
3089:
3081:
3076:
3075:
3055:Wright, John B.
3045:August 29, 1984.
2982:Robbins, Chuck.
2956:October 3, 2001.
2905:August 24, 2005.
2761:August 22, 1999.
2553:
2546:
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2429:October 8, 2010.
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2416:August 12, 2010.
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2315:August 24, 2005.
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2196:August 22, 1999.
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2101:Chicago Tribune,
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1945:August 29, 1984.
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1048:whirling disease
767:
553:Meriwether Lewis
366:Canyon Ferry Dam
257:of the state of
226:Holter Reservoir
90:
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4067:
4023:Dams in Montana
4008:
4007:
4006:
4001:
3992:
3938:Black Eagle Dam
3909:
3903:
3873:
3868:
3859:
3857:
3850:
3691:Lewis and Clark
3557:
3439:
3430:Western Montana
3410:Eastern Montana
3396:
3335:
3304:Protected areas
3243:
3231:
3222:
3091:
3084:
3077:
3070:
3067:
3062:
2913:April 28, 1917.
2877:August 9, 2007.
2596:Chicago Tribune
2576:August 9, 2001.
2561:
2556:
2547:
2543:
2534:
2527:
2518:
2514:
2505:
2501:
2492:
2488:
2483:
2479:
2474:
2470:
2464:April 12, 2011.
2458:
2445:
2440:
2433:
2424:
2420:
2411:
2407:
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2323:
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2255:
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2204:
2200:
2191:
2187:
2174:
2170:
2162:
2155:
2147:
2136:
2127:
2123:
2114:
2107:
2098:
2094:
2090:2002, p. 70-75.
2085:
2081:
2072:
2065:
2056:
2047:
2038:
2034:
2025:
2021:
2012:
2008:
1999:
1995:
1985:The Missoulian,
1982:
1978:
1969:
1965:
1956:
1949:
1940:
1936:
1927:
1918:
1910:
1903:
1894:
1887:
1878:
1874:
1865:
1854:
1850:2000, p. 64-65.
1845:
1841:
1837:August 9, 2007.
1832:
1825:
1816:
1812:
1803:
1799:
1790:
1786:
1777:
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1692:
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1391:
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1354:
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1341:
1332:
1325:
1316:
1312:
1303:
1294:
1286:
1275:
1267:
1240:
1231:
1210:
1201:
1199:
1194:
1193:
1189:
1185:
897:Mottled Sculpin
881:Longnose Sucker
723:
612:
590:Mann Gulch fire
578:
530:
518:Belt Supergroup
484:
455:
400:, designed the
357:corporate bonds
325:design engineer
313:Anaconda Copper
243:
238:
224:(also known as
218:Helena, Montana
83:
81:
77:
74:
69:
66:
64:
62:
61:
34:
17:
12:
11:
5:
4076:
4074:
4066:
4065:
4060:
4055:
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4035:
4030:
4025:
4020:
4010:
4009:
4003:
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3995:
3993:
3991:
3990:
3985:
3980:
3975:
3970:
3965:
3960:
3955:
3950:
3945:
3940:
3935:
3930:
3925:
3920:
3914:
3911:
3910:
3907:Missouri River
3904:
3902:
3901:
3894:
3887:
3879:
3870:
3869:
3855:
3852:
3851:
3849:
3848:
3843:
3838:
3833:
3828:
3823:
3818:
3813:
3808:
3803:
3798:
3793:
3788:
3783:
3778:
3773:
3768:
3763:
3758:
3753:
3748:
3743:
3738:
3733:
3728:
3723:
3718:
3713:
3708:
3703:
3698:
3693:
3688:
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3673:
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3663:
3658:
3653:
3648:
3643:
3638:
3633:
3628:
3623:
3618:
3613:
3608:
3603:
3598:
3593:
3588:
3583:
3578:
3573:
3567:
3565:
3559:
3558:
3556:
3555:
3550:
3545:
3540:
3535:
3530:
3525:
3520:
3515:
3510:
3505:
3500:
3495:
3490:
3485:
3480:
3478:Columbia Falls
3475:
3470:
3465:
3460:
3455:
3449:
3447:
3445:Largest cities
3441:
3440:
3438:
3437:
3432:
3427:
3422:
3417:
3412:
3406:
3404:
3398:
3397:
3395:
3394:
3389:
3384:
3379:
3374:
3369:
3364:
3359:
3354:
3349:
3343:
3341:
3337:
3336:
3334:
3333:
3328:
3326:Transportation
3323:
3322:
3321:
3311:
3306:
3301:
3296:
3295:
3294:
3284:
3279:
3274:
3269:
3264:
3262:Climate change
3259:
3253:
3251:
3245:
3244:
3236:
3233:
3232:
3223:
3221:
3220:
3213:
3206:
3198:
3192:
3191:
3190:
3189:
3182:
3175:
3168:
3161:
3154:
3147:
3140:
3133:
3126:
3113:
3108:
3103:
3097:
3096:
3082:
3066:
3065:External links
3063:
3061:
3060:
3053:
3046:
3039:
3030:
3022:
3021:June 15, 1999.
3015:
3008:
3001:
2994:
2987:
2980:
2971:
2964:
2957:
2950:
2943:
2936:
2929:
2928:March 3, 1999.
2922:
2917:Mount, Ellis.
2915:
2906:
2899:
2892:
2885:
2878:
2871:
2870:April 5, 2001.
2864:
2857:
2850:
2841:
2836:The Missoulian
2831:
2824:
2817:
2811:
2810:June 14, 1999.
2804:
2803:July 13, 2007.
2797:
2790:
2783:
2776:
2769:
2762:
2755:
2748:
2741:
2734:
2725:
2718:
2706:
2699:
2692:
2685:
2678:
2677:July 10, 2008.
2671:
2664:
2657:
2650:
2649:June 14, 1999.
2643:
2642:June 12, 2008.
2636:
2635:June 12, 2005.
2629:
2622:
2615:
2608:
2601:
2591:
2584:
2577:
2570:
2562:
2560:
2557:
2555:
2554:
2552:July 13, 2007.
2541:
2525:
2512:
2499:
2486:
2477:
2468:
2462:Belgrade News.
2443:
2431:
2418:
2405:
2403:June 24, 2010.
2389:
2373:
2371:July 10, 2008.
2357:
2355:June 12, 2008.
2343:
2330:
2317:
2304:
2291:
2278:
2262:
2249:
2236:
2223:
2198:
2185:
2183:April 9, 1997.
2168:
2153:
2134:
2121:
2105:
2092:
2079:
2063:
2045:
2043:April 5, 2001.
2032:
2019:
2006:
2004:March 3, 1999.
1993:
1976:
1974:June 15, 1999.
1963:
1961:June 14, 1999.
1947:
1934:
1932:June 14, 1999.
1916:
1901:
1899:June 12, 2005.
1885:
1872:
1852:
1839:
1823:
1810:
1797:
1784:
1756:
1736:
1724:
1708:
1699:
1683:
1655:
1645:
1632:
1623:
1609:
1591:
1589:1918, p. 2370.
1579:
1562:
1540:
1524:
1515:
1502:
1484:
1462:
1445:
1432:
1418:
1402:
1385:
1365:
1352:
1339:
1323:
1310:
1292:
1273:
1238:
1208:
1186:
1184:
1181:
1156:mountain goats
1035:
1034:
1031:
1028:
1025:
1019:
1018:
1015:
1012:
1009:
1003:
1002:
999:
996:
993:
987:
986:
983:
980:
977:
971:
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967:
965:
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952:
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924:
923:
920:
917:
914:
908:
907:
904:
902:
899:
893:
892:
889:
886:
883:
877:
876:
873:
870:
867:
861:
860:
857:
854:
851:
849:Fathead Minnow
845:
844:
841:
838:
835:
829:
828:
825:
822:
819:
813:
812:
809:
806:
803:
797:
796:
793:
790:
787:
781:
780:
777:
774:
771:
755:kokanee salmon
722:
719:
707:Toshio Shibata
611:
608:
598:Norman Maclean
577:
574:
569:Rose of Helena
529:
526:
522:Sevier orogeny
483:
480:
454:
451:
426:water turbines
385:Butte, Montana
361:John D. Ryan's
323:was the dam's
242:
239:
237:
234:
214:Missouri River
194:
193:
186:
180:
179:
173:
167:
166:
162:
161:
158:
154:
153:
149:
148:
145:
141:
140:
137:
133:
132:
130:Missouri River
127:
123:
122:
118:
117:
112:
108:
107:
104:
100:
99:
96:
92:
91:
59:
55:
54:
48:
44:
43:
40:
36:
35:
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
4075:
4064:
4061:
4059:
4056:
4054:
4051:
4049:
4046:
4044:
4041:
4039:
4036:
4034:
4031:
4029:
4026:
4024:
4021:
4019:
4016:
4015:
4013:
3999:
3989:
3986:
3984:
3981:
3979:
3976:
3974:
3971:
3969:
3966:
3964:
3963:Fort Peck Dam
3961:
3959:
3956:
3954:
3951:
3949:
3946:
3944:
3941:
3939:
3936:
3934:
3931:
3929:
3926:
3924:
3921:
3919:
3916:
3915:
3912:
3908:
3900:
3895:
3893:
3888:
3886:
3881:
3880:
3877:
3867:
3866:
3853:
3847:
3844:
3842:
3839:
3837:
3834:
3832:
3829:
3827:
3824:
3822:
3819:
3817:
3814:
3812:
3809:
3807:
3804:
3802:
3799:
3797:
3794:
3792:
3789:
3787:
3784:
3782:
3779:
3777:
3774:
3772:
3769:
3767:
3764:
3762:
3759:
3757:
3754:
3752:
3749:
3747:
3744:
3742:
3739:
3737:
3734:
3732:
3729:
3727:
3724:
3722:
3719:
3717:
3714:
3712:
3709:
3707:
3704:
3702:
3699:
3697:
3694:
3692:
3689:
3687:
3684:
3682:
3679:
3677:
3674:
3672:
3669:
3667:
3664:
3662:
3661:Golden Valley
3659:
3657:
3654:
3652:
3649:
3647:
3644:
3642:
3639:
3637:
3634:
3632:
3629:
3627:
3624:
3622:
3619:
3617:
3614:
3612:
3609:
3607:
3604:
3602:
3599:
3597:
3594:
3592:
3589:
3587:
3584:
3582:
3579:
3577:
3574:
3572:
3569:
3568:
3566:
3564:
3560:
3554:
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3549:
3546:
3544:
3541:
3539:
3536:
3534:
3531:
3529:
3526:
3524:
3521:
3519:
3516:
3514:
3511:
3509:
3506:
3504:
3501:
3499:
3496:
3494:
3491:
3489:
3486:
3484:
3481:
3479:
3476:
3474:
3471:
3469:
3466:
3464:
3461:
3459:
3456:
3454:
3451:
3450:
3448:
3446:
3442:
3436:
3433:
3431:
3428:
3426:
3423:
3421:
3418:
3416:
3413:
3411:
3408:
3407:
3405:
3403:
3399:
3393:
3390:
3388:
3385:
3383:
3380:
3378:
3375:
3373:
3370:
3368:
3365:
3363:
3360:
3358:
3355:
3353:
3350:
3348:
3345:
3344:
3342:
3338:
3332:
3329:
3327:
3324:
3320:
3317:
3316:
3315:
3314:State symbols
3312:
3310:
3307:
3305:
3302:
3300:
3297:
3293:
3290:
3289:
3288:
3285:
3283:
3280:
3278:
3275:
3273:
3270:
3268:
3265:
3263:
3260:
3258:
3255:
3254:
3252:
3250:
3246:
3241:
3240:
3234:
3230:
3226:
3219:
3214:
3212:
3207:
3205:
3200:
3199:
3196:
3187:
3183:
3180:
3176:
3173:
3169:
3166:
3162:
3159:
3155:
3152:
3148:
3145:
3141:
3138:
3134:
3131:
3127:
3124:
3120:
3119:
3117:
3114:
3112:
3109:
3107:
3104:
3102:
3099:
3098:
3094:
3088:
3083:
3080:
3074:
3069:
3064:
3058:
3054:
3051:
3047:
3044:
3040:
3037:
3035:
3031:
3029:
3027:
3023:
3020:
3016:
3013:
3009:
3006:
3002:
2999:
2995:
2992:
2988:
2985:
2981:
2979:
2977:
2972:
2969:
2965:
2963:May 25, 2000.
2962:
2958:
2955:
2951:
2948:
2944:
2941:
2937:
2934:
2930:
2927:
2923:
2920:
2916:
2914:
2912:
2907:
2904:
2900:
2897:
2893:
2890:
2889:Moon Montana.
2886:
2883:
2879:
2876:
2872:
2869:
2865:
2862:
2858:
2855:
2851:
2848:
2845:
2842:
2839:
2837:
2832:
2829:
2825:
2822:
2818:
2815:
2812:
2809:
2805:
2802:
2798:
2795:
2791:
2788:
2784:
2781:
2778:Grant, Tina.
2777:
2774:
2770:
2767:
2763:
2760:
2756:
2753:
2749:
2747:May 25, 2000.
2746:
2742:
2739:
2736:Clary, Jean.
2735:
2733:
2731:
2726:
2724:May 17, 2007.
2723:
2719:
2716:
2714:
2710:
2707:
2704:
2700:
2697:
2693:
2690:
2686:
2684:May 13, 2004.
2683:
2679:
2676:
2672:
2669:
2665:
2663:May 13, 2004.
2662:
2658:
2656:May 13, 2004.
2655:
2651:
2648:
2644:
2641:
2637:
2634:
2630:
2627:
2623:
2621:May 24, 2008.
2620:
2616:
2613:
2610:Axline, Jon.
2609:
2606:
2602:
2599:
2597:
2592:
2589:
2585:
2582:
2578:
2575:
2571:
2568:
2564:
2563:
2558:
2551:
2545:
2542:
2538:
2532:
2530:
2526:
2522:
2516:
2513:
2509:
2508:Moon Montana,
2503:
2500:
2496:
2490:
2487:
2481:
2478:
2472:
2469:
2465:
2463:
2456:
2454:
2452:
2450:
2448:
2444:
2438:
2436:
2432:
2428:
2422:
2419:
2415:
2409:
2406:
2402:
2398:
2393:
2390:
2386:
2380:
2378:
2374:
2370:
2364:
2362:
2358:
2354:
2347:
2344:
2341:May 24, 2008.
2340:
2334:
2331:
2327:
2321:
2318:
2314:
2308:
2305:
2301:
2295:
2292:
2289:May 13, 2004.
2288:
2282:
2279:
2275:
2269:
2267:
2263:
2259:
2253:
2250:
2247:May 13, 2004.
2246:
2240:
2237:
2234:May 13, 2004.
2233:
2227:
2224:
2220:
2216:
2212:
2208:
2202:
2199:
2195:
2189:
2186:
2182:
2178:
2172:
2169:
2165:
2160:
2158:
2154:
2150:
2145:
2143:
2141:
2139:
2135:
2131:
2125:
2122:
2119:May 17, 2007.
2118:
2112:
2110:
2106:
2102:
2096:
2093:
2089:
2083:
2080:
2076:
2070:
2068:
2064:
2061:2005, p. 309.
2060:
2054:
2052:
2050:
2046:
2042:
2036:
2033:
2029:
2023:
2020:
2016:
2010:
2007:
2003:
1997:
1994:
1990:
1986:
1980:
1977:
1973:
1967:
1964:
1960:
1954:
1952:
1948:
1944:
1938:
1935:
1931:
1925:
1923:
1921:
1917:
1913:
1908:
1906:
1902:
1898:
1892:
1890:
1886:
1882:
1876:
1873:
1870:2009, p. 201.
1869:
1868:Moon Montana,
1863:
1861:
1859:
1857:
1853:
1849:
1843:
1840:
1836:
1830:
1828:
1824:
1820:
1814:
1811:
1807:
1801:
1798:
1794:
1788:
1785:
1781:
1775:
1773:
1771:
1769:
1767:
1765:
1763:
1761:
1757:
1754:1998, p. 126.
1753:
1747:
1745:
1743:
1741:
1737:
1733:
1728:
1725:
1722:2003, p. 129.
1721:
1715:
1713:
1709:
1703:
1700:
1696:
1690:
1688:
1684:
1681:May 25, 2000.
1680:
1676:
1670:
1668:
1666:
1664:
1662:
1660:
1656:
1649:
1646:
1643:2007, p. 289.
1642:
1636:
1633:
1627:
1624:
1618:
1616:
1614:
1610:
1606:
1600:
1598:
1596:
1592:
1588:
1583:
1580:
1577:1918, p. 357.
1576:
1572:
1566:
1563:
1559:
1553:
1551:
1549:
1547:
1545:
1541:
1538:2006, p. 204.
1537:
1531:
1529:
1525:
1519:
1516:
1513:1994, p. 118.
1512:
1506:
1503:
1500:1999, p. 137.
1499:
1493:
1491:
1489:
1485:
1479:
1477:
1475:
1473:
1471:
1469:
1467:
1463:
1459:
1455:
1449:
1446:
1442:
1436:
1433:
1427:
1425:
1423:
1419:
1416:1999, p. 141.
1415:
1409:
1407:
1403:
1400:1918, p. 198.
1399:
1395:
1389:
1386:
1383:1912, p. 135.
1382:
1376:
1374:
1372:
1370:
1366:
1363:1912, p. 267.
1362:
1356:
1353:
1349:
1343:
1340:
1337:2004, p. 708.
1336:
1330:
1328:
1324:
1320:
1314:
1311:
1307:
1301:
1299:
1297:
1293:
1289:
1284:
1282:
1280:
1278:
1274:
1270:
1265:
1263:
1261:
1259:
1257:
1255:
1253:
1251:
1249:
1247:
1245:
1243:
1239:
1236:2009, p. 125.
1235:
1229:
1227:
1225:
1223:
1221:
1219:
1217:
1215:
1213:
1209:
1197:
1191:
1188:
1182:
1180:
1177:
1173:
1169:
1165:
1161:
1157:
1153:
1149:
1148:golden eagles
1145:
1141:
1137:
1136:bighorn sheep
1133:
1129:
1125:
1119:
1115:
1113:
1109:
1103:
1100:
1095:
1092:
1087:
1079:
1075:
1073:
1068:
1064:
1060:
1055:
1053:
1049:
1044:
1042:
1032:
1029:
1026:
1024:
1021:
1020:
1016:
1013:
1010:
1008:
1005:
1004:
1000:
997:
994:
992:
989:
988:
984:
981:
978:
976:
973:
972:
968:
966:
963:
961:
958:
957:
953:
950:
947:
945:
944:Rainbow Trout
942:
941:
937:
934:
931:
929:
928:Northern Pike
926:
925:
921:
918:
915:
913:
910:
909:
905:
903:
900:
898:
895:
894:
890:
887:
884:
882:
879:
878:
874:
871:
868:
866:
863:
862:
858:
855:
852:
850:
847:
846:
842:
839:
836:
834:
831:
830:
826:
823:
820:
818:
815:
814:
810:
807:
804:
802:
799:
798:
794:
791:
788:
786:
783:
782:
779:Native to MT
768:
765:Species List
762:
760:
756:
752:
748:
744:
740:
739:rainbow trout
736:
727:
720:
718:
716:
712:
708:
705:
702:
698:
694:
691:commissioned
690:
685:
683:
679:
674:
672:
667:
662:
659:
653:
649:
647:
644:
640:
631:
627:
624:
621:
617:
609:
607:
605:
604:
599:
595:
591:
587:
583:
575:
573:
570:
567:
561:
556:
554:
551:
547:
543:
534:
527:
525:
523:
519:
516:
512:
508:
504:
500:
496:
492:
488:
481:
479:
477:
472:
469:
459:
452:
450:
446:
444:
439:
435:
431:
428:, seven main
427:
424:
420:
414:
411:
407:
403:
399:
395:
392:project. The
390:
386:
382:
381:Chas. T. Main
378:
374:
369:
367:
362:
358:
354:
350:
346:
342:
338:
334:
330:
326:
322:
318:
314:
308:
305:
301:
297:
293:
289:
284:
283:Panic of 1893
280:
276:
272:
268:
264:
260:
256:
252:
248:
240:
235:
233:
231:
227:
223:
219:
215:
211:
208:
204:
203:hydroelectric
200:
191:
187:
185:
181:
178:
174:
172:
168:
165:Power Station
163:
159:
155:
150:
146:
142:
138:
134:
131:
128:
124:
119:
116:
113:
109:
105:
101:
97:
93:
88:
60:
56:
52:
49:
45:
41:
39:Official name
37:
30:
25:
20:
4053:Gravity dams
3978:Big Bend Dam
3968:Garrison Dam
3948:Cochrane Dam
3932:
3905:Dams on the
3856:
3756:Powder River
3681:Judith Basin
3415:The Flathead
3367:Demographics
3292:bibliography
3237:
3079:Water portal
3056:
3049:
3042:
3033:
3025:
3018:
3011:
3004:
2997:
2990:
2983:
2975:
2967:
2960:
2953:
2946:
2939:
2932:
2925:
2918:
2910:
2902:
2895:
2888:
2881:
2874:
2867:
2860:
2853:
2846:
2834:
2827:
2820:
2807:
2800:
2793:
2786:
2779:
2772:
2765:
2758:
2754:May 9, 2003.
2751:
2744:
2737:
2729:
2721:
2717:May 7, 2010.
2711:
2702:
2695:
2688:
2681:
2674:
2667:
2660:
2653:
2646:
2639:
2632:
2625:
2618:
2611:
2604:
2594:
2587:
2580:
2573:
2566:
2559:Bibliography
2549:
2544:
2539:May 7, 2010.
2536:
2520:
2515:
2507:
2502:
2494:
2489:
2480:
2471:
2461:
2426:
2421:
2413:
2408:
2400:
2396:
2392:
2384:
2368:
2352:
2346:
2338:
2333:
2325:
2320:
2312:
2307:
2299:
2294:
2286:
2281:
2273:
2257:
2252:
2244:
2239:
2231:
2226:
2218:
2214:
2210:
2206:
2201:
2193:
2188:
2180:
2176:
2171:
2163:
2148:
2129:
2124:
2116:
2100:
2095:
2087:
2082:
2077:May 9, 2003.
2074:
2058:
2040:
2035:
2027:
2022:
2014:
2009:
2001:
1996:
1988:
1984:
1979:
1971:
1966:
1958:
1942:
1937:
1929:
1911:
1896:
1880:
1875:
1867:
1847:
1842:
1834:
1821:2000, p. 63.
1818:
1813:
1808:2005, p. 85.
1805:
1800:
1792:
1787:
1782:2000, p. 64.
1779:
1751:
1731:
1727:
1719:
1702:
1694:
1678:
1674:
1648:
1640:
1635:
1626:
1604:
1586:
1582:
1574:
1565:
1557:
1535:
1518:
1510:
1505:
1497:
1457:
1453:
1448:
1443:2005, p. 34.
1440:
1435:
1413:
1397:
1393:
1388:
1380:
1360:
1355:
1347:
1342:
1334:
1318:
1313:
1308:2003, p. 17.
1305:
1287:
1268:
1233:
1200:. Retrieved
1190:
1120:
1116:
1104:
1096:
1084:
1056:
1045:
1038:
1023:Yellow Perch
1007:White Sucker
759:yellow perch
732:
704:photographer
686:
675:
663:
654:
650:
636:
625:
613:
601:
594:smokejumpers
579:
568:
563:
558:
539:
511:thrust fault
485:
473:
464:
447:
415:
402:water wheels
370:
345:Panama Canal
317:Anton Holter
309:
244:
236:Dam and lake
225:
221:
198:
197:
188:319,800,000
3943:Rainbow Dam
3846:Yellowstone
3811:Sweet Grass
3731:Musselshell
3493:Great Falls
3435:Yellowstone
3392:LGBT rights
2856:March 1906.
2785:Hall, J.H.
1718:Johnsgard,
1317:Goodspeed,
1304:Badovinac,
1176:campgrounds
1132:bald eagles
1033:Introduced
985:Introduced
969:Introduced
954:Introduced
938:Introduced
875:Introduced
843:Introduced
833:Common Carp
811:Introduced
801:Brown Trout
795:Introduced
785:Brook Trout
743:brown trout
735:Blue Ribbon
639:forest fire
515:Proterozoic
495:brachiopods
453:Holter Lake
443:flashboards
410:dormitories
253:, a former
222:Holter Lake
160:Holter Lake
111:Operator(s)
82: /
70:112°00′21″W
58:Coordinates
4012:Categories
3958:Morony Dam
3933:Holter Dam
3928:Hauser Dam
3918:Toston Dam
3806:Stillwater
3801:Silver Bow
3626:Deer Lodge
3586:Broadwater
3571:Beaverhead
3533:Miles City
3528:Livingston
3277:Government
2732:June 1910.
1607:June 1910.
1571:Hebgen Dam
1202:2018-04-26
1126:, and the
1030:Warmwater
1014:Warmwater
998:Coldwater
982:Warmwater
951:Coldwater
935:Warmwater
919:Coldwater
888:Warmwater
872:Coldwater
856:Warmwater
840:Warmwater
824:Coldwater
808:Coldwater
792:Coldwater
658:cofferdams
582:Mann Gulch
576:Mann Gulch
432:and three
423:horsepower
343:, and the
337:Keokuk Dam
292:Hauser Dam
241:Holter Dam
199:Holter Dam
67:46°59′30″N
42:Holter Dam
22:Holter Dam
3836:Wheatland
3781:Roosevelt
3741:Petroleum
3676:Jefferson
3553:Whitefish
3523:Lewistown
3513:Kalispell
3377:Education
3282:Governors
3272:Geography
3242:(capital)
2057:Robbins,
1509:Robbins,
1392:Jackson,
1333:Shearer,
1183:Footnotes
1112:Jefferson
960:Utah Chub
751:stonecats
566:steamboat
493:, mostly
438:kilowatts
419:penstocks
406:bunkhouse
298:built on
296:steel dam
271:railroads
205:straight
152:Reservoir
3973:Oahe Dam
3953:Ryan Dam
3826:Treasure
3796:Sheridan
3776:Richland
3746:Phillips
3726:Missoula
3651:Garfield
3646:Gallatin
3641:Flathead
3606:Chouteau
3576:Big Horn
3563:Counties
3538:Missoula
3498:Hamilton
3488:Glendive
3463:Billings
3458:Belgrade
3453:Anaconda
3387:Politics
3382:Gun laws
3352:Cannabis
3347:Abortion
2787:Montana.
1846:Wright,
1804:Miller,
1778:Wright,
1750:Sample,
1534:Malone,
1439:Axline,
1381:Montana,
1359:Murphy,
1196:"Holter"
1164:pelicans
1108:Gallatin
901:Sculpin
821:Codfish
770:Species
701:Japanese
616:megawatt
600:'s book
507:mollusks
434:exciters
389:engineer
375:and the
279:smelting
275:ranching
126:Impounds
47:Location
3791:Sanders
3786:Rosebud
3771:Ravalli
3766:Prairie
3751:Pondera
3721:Mineral
3716:Meagher
3706:Madison
3701:Lincoln
3696:Liberty
3666:Granite
3656:Glacier
3616:Daniels
3601:Cascade
3468:Bozeman
3402:Regions
3372:Economy
3362:Culture
3340:Society
3287:History
3229:Montana
1639:Grant,
1496:Clary,
1452:Mount,
1412:Clary,
1144:falcons
1099:walleye
1086:Drought
1072:Madison
1041:walleye
1017:Native
1011:Sucker
1001:Native
975:Walleye
964:Minnow
922:Native
906:Native
891:Native
885:Sucker
865:Kokanee
859:Native
853:Minnow
837:Minnow
827:Native
773:Family
713:at the
711:Chicago
693:painter
550:Captain
503:mussels
491:fossils
304:bedrock
300:masonry
263:banking
259:Montana
212:on the
207:gravity
157:Creates
3841:Wibaux
3831:Valley
3761:Powell
3711:McCone
3636:Fergus
3631:Fallon
3621:Dawson
3611:Custer
3596:Carter
3591:Carbon
3581:Blaine
3548:Sidney
3543:Polson
3518:Laurel
3508:Helena
3483:Dillon
3309:Sports
3299:People
3249:Topics
3239:Helena
1379:Hall,
1162:, and
1160:osprey
1110:, and
1061:, the
1027:Perch
995:Trout
979:Perch
948:Trout
916:Trout
869:Trout
817:Burbot
805:Trout
789:Trout
776:Class
747:burbot
648:line.
620:median
584:. The
572:1805.
505:, and
379:. The
353:Boston
339:, the
335:, the
331:, the
277:, and
267:mining
192:(2009)
144:Length
136:Height
53:, U.S.
3821:Toole
3816:Teton
3503:Havre
3473:Butte
3357:Crime
3257:Index
3225:State
2828:Dams.
1394:Dams,
1152:hawks
932:Pike
586:gulch
499:clams
497:like
201:is a
3736:Park
3686:Lake
3671:Hill
757:and
749:and
643:volt
468:mean
408:and
351:, a
106:1918
98:1908
3227:of
1140:elk
699:).
396:of
347:).
210:dam
190:KWh
175:50
4014::
2528:^
2446:^
2434:^
2376:^
2360:^
2265:^
2156:^
2137:^
2108:^
2066:^
2048:^
1950:^
1919:^
1904:^
1888:^
1855:^
1826:^
1759:^
1739:^
1711:^
1686:^
1658:^
1612:^
1594:^
1543:^
1527:^
1487:^
1465:^
1421:^
1405:^
1368:^
1326:^
1295:^
1276:^
1241:^
1211:^
1158:,
1154:,
1150:,
1146:,
1142:,
1138:,
1134:,
717:.
684:.
524:.
501:,
478:.
273:,
269:,
265:,
249:.
177:MW
3898:e
3891:t
3884:v
3217:e
3210:t
3203:v
2838:.
2715:.
2598:.
1205:.
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