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The refuge has several archeological displays and a reconstructed Tipi ring located at the entrance to the nature trail. At the location of the Lake Ilo dam, there is also a historical display discussing the history of the dam project on the 1930s and 1990s. Along the north shore of the lake, a boat
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work resulted in obtaining over 58,000 artifacts by 1994. These artifacts help to reconstruct the lifestyle and culture of the earliest known human inhabitants to the region. Additionally, numerous bones of now extinct mammal species assist in determining the biodiversity of the region at the end of
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is permitted on the lake almost year-round except for the month of April. Small motorized boats are permitted but must not operate above idle speed. Some wetland areas may be excluded from fishing during certain periods of the spring and fall to protect nesting birds. Wildlife viewing is available
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Summers on the northern Great Plains of North Dakota are usually pleasant with temperatures in the 70s °F (25 °C), and nighttime lows usually dipping into the 50s (7 °C). The winters are windy and can be very cold, with temperatures as low as -56 °F (-49 °C) and an average of 2
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and the 1,240-acre (5 km) Lake Ilo, which is a man-made lake. The prairie ecosystem of the region receives only 16.8 inches (42 cm) of precipitation annually so the lake provides nesting habitat and a sustainable water supply for hundreds of migratory waterfowl and other birds. In
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In the late 1980s, the dam on Lake Ilo was determined to be deficient in a number of ways and the lake was drained in 1989 a total of 7 feet (2 m). A new concrete dam was constructed and soil from the old dam was used to build two small islands to improve nesting habitat for waterfowl.
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artifacts found on land managed by the U.S. Fish and
Wildlife Service. These artifacts help to educate modern peoples about those who lived in the region more 10,000 years ago, and enhances the refuge with a human culture story that was not anticipated when the region was set aside for wildlife
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and is one of dozens of outlying
National Wildlife Refuges which have their main headquarters at Audubon National Wildlife Refuge. A small staff maintains the refuge. Lake Ilo NWR is one of over 540 locations managed by the U.S. Fish and Wildlife Service, an agency of the
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to build a dam at the confluence of two creeks, which would help create a more sustainable water supply for the immediate area since no sizeable bodies of water existed in this region of North Dakota. The dam was completed in 1938 and the following year,
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from a 1-mile (1.6 km) nature trail which is located on the north shore of Lake Ilo, as well as from gravel roads. Much of the wetland environment on the southwestern side of the lake is off-limits to people year round.
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and some upland range, providing habitat for hundreds of species of birds, and numerous fish and mammal species. An average of over 16 inches (40 cm) of precipitation falls annually, supporting a prairie ecosystem.
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are a few of the less likely to be observed of the 36 mammal species that have been recorded on the refuge. Lake Ilo NWR is also home to three species of amphibians and six species of reptiles including the
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can be seen each year. While the vast majority of bird species are most abundant during the spring and fall migrations, some bird species can be found year-round.
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After the lake water was partially drained, numerous Paleo Indian artifacts were discovered, including stone artifacts and even a
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period have been recovered from the refuge since 1989. Many of the stone tools are made from what is known as
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The region in which Lake Ilo NWR is located was one of the last to be settled by white settlers on the
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The refuge region has been inhabited by humans for 11,000 years, and 58,000 stone artifacts from the
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782:"Amphibian and Reptile Checklists of the United States, Lake Ilo National Wildlife Refuge"
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work at Lake Ilo NWR in the 1990s resulted in creating one of the largest assemblages of
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signed a congressional bill designating the new lake and the surrounding area as a
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A total of 226 species of birds have been observed at Lake Ilo NWR, including the
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is but one of over a hundred species of waterfowl that can be seen at the refuge.
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to an already arid region. Starting in 1936, local citizens were hired by the
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are examples of the 11 fish species that have been documented in the refuge.
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549:"Lake Ilo National Wildlife Refuge Glimpses of Paleoindian Life"
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are located in the refuge. The natural habitat of the region is
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375:. During fall migrations, as many as 100,000 waterfowl such as
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Lake Ilo NWR consists of 2,650 acres (11 km) grassland
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Arrow point made of Knife River Flint found on the refuge
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The refuge is located 1 mile (1.6 km) west of
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Highway 200, and is only open during the daytime.
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555:. U.S. Fish and Wildlife Service. Archived from
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607:"Grass-covered flint pits hide untold stories"
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314:addition to the lake, over two dozen smaller
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1873:Landforms of Dunn County, North Dakota
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609:. The Bismarck Tribune. Archived from
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31:IV (habitat/species management area)
521:"Lake Ilo National Wildlife Refuge"
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864:Lake Ilo National Wildlife Refuge
736:Lake Ilo National Wildlife Refuge
661:Lake Ilo National Wildlife Refuge
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422:are relatively common, while the
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842:. U.S. Fish and Wildlife Service
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494:Lake Ilo NWR is a part of the
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871:"USGS Lake Ilo (ND) Topo Map"
581:"Uncovering the Buried Past"
1827:U.S. Minor Outlying Islands
962:Knife River Indian Villages
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1362:International Peace Garden
322:, which is similar to the
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972:National Wildlife Refuges
484:Dunn Center, North Dakota
76:Dunn County, North Dakota
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1868:Wetlands of North Dakota
813:. U.S. Geological Survey
788:. U.S. Geological Survey
763:. U.S. Geological Survey
713:. U.S. Geological Survey
688:. U.S. Geological Survey
393:double-crested cormorant
269:National Wildlife Refuge
173:(NWR) is located in the
136:4,034 acres (16 km)
957:Fort Union Trading Post
949:National Historic Sites
632:"Refuge Establishment"
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117:47.33639°N 102.68806°W
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402:Mammals such as the
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279:. Subsequent
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29:IUCN category
25:
20:
1760:South Dakota
1750:Rhode Island
1745:Pennsylvania
1725:North Dakota
1504:
1452:Turtle River
1255:Upper Souris
1220:Stewart Lake
1125:Little Goose
1094:
1075:Johnson Lake
1010:Buffalo Lake
923:North Dakota
878:. Retrieved
844:. Retrieved
815:. Retrieved
810:
801:
790:. Retrieved
785:
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765:. Retrieved
760:
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740:. Retrieved
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715:. Retrieved
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690:. Retrieved
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665:. Retrieved
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640:. Retrieved
635:
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611:the original
600:
589:. Retrieved
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561:. Retrieved
557:the original
552:
529:. Retrieved
524:
515:
493:
481:
477:
470:
457:yellow perch
401:
377:Canada geese
356:
332:
308:
273:
245:Great Plains
242:
220:
205:protection.
202:Paleo Indian
196:
179:North Dakota
170:
169:
1822:Puerto Rico
1675:Mississippi
1590:Connecticut
1447:Sully Creek
1407:Fort Ransom
1397:Cross Ranch
1392:Beaver Lake
1303:Cedar River
1275:Willow Lake
1215:Springwater
1210:Snyder Lake
1200:Silver Lake
1195:Sibley Lake
1160:Pretty Rock
1145:Maple River
1100:Lake Nettie
1090:Lake George
1060:Hobart Lake
1035:Dakota Lake
980:Appert Lake
876:. TopoQuest
682:"Blizzards"
449:chorus frog
253:dust storms
227:Knife River
141:Established
120: /
108:102°41′17″W
96:Coordinates
1847:Categories
1790:Washington
1710:New Mexico
1705:New Jersey
1580:California
1336:Chase Lake
1265:White Lake
1235:Stump Lake
1230:Storm Lake
1185:Shell Lake
1135:Lords Lake
1120:Lambs Lake
1085:Lake Alice
1055:Hiddenwood
1025:Chase Lake
880:2008-07-04
846:2006-09-19
817:2006-09-19
792:2006-09-19
767:2006-09-19
742:2006-09-19
732:"Wildlife"
717:2006-09-19
692:2006-09-19
667:2006-09-19
642:2006-09-19
617:2011-08-24
591:2006-09-15
563:2011-08-21
531:2006-09-15
507:References
490:Management
467:Recreation
445:bull snake
369:bald eagle
366:threatened
364:, and the
359:endangered
238:New Mexico
175:U.S. state
105:47°20′11″N
1800:Wisconsin
1765:Tennessee
1670:Minnesota
1645:Louisiana
1422:Icelandic
1285:Wood Lake
1270:Wild Rice
1175:Rose Lake
1170:Rock Lake
1165:Rabb Lake
1140:Lost Lake
1130:Long Lake
1115:Lake Zahl
1105:Lake Otis
1015:Camp Lake
1000:Bone Hill
990:Arrowwood
428:mule deer
424:pronghorn
336:blizzards
292:Ecosystem
277:Tipi ring
249:Dust Bowl
1785:Virginia
1735:Oklahoma
1715:New York
1690:Nebraska
1680:Missouri
1665:Michigan
1655:Maryland
1640:Kentucky
1620:Illinois
1595:Delaware
1585:Colorado
1575:Arkansas
1341:Lostwood
1318:Sheyenne
1250:Tomahawk
1245:Tewaukon
1095:Lake Ilo
1040:Des Lacs
447:and the
381:mallards
316:wetlands
305:Lake Ilo
234:New York
191:wetlands
72:Location
1805:Wyoming
1780:Vermont
1685:Montana
1625:Indiana
1605:Georgia
1600:Florida
1570:Arizona
1560:Alabama
995:Audubon
472:Fishing
420:raccoon
342:Biology
311:prairie
297:Habitat
286:ice age
209:History
185:by the
159:Website
1740:Oregon
1695:Nevada
1635:Kansas
1610:Hawaii
1565:Alaska
1150:McLean
1005:Brumba
985:Ardoch
432:coyote
416:beaver
408:badger
324:steppe
223:Folsom
1770:Texas
1650:Maine
1615:Idaho
1385:Parks
1377:State
1205:Slade
874:(Map)
840:(pdf)
412:skunk
230:Flint
1817:Guam
1775:Utah
1730:Ohio
1630:Iowa
459:and
430:and
395:and
371:and
328:Asia
284:the
236:and
144:1939
133:Area
921:of
326:of
177:of
80:USA
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
