405:
547:) and coho salmon spawning populations in the Lagunitas Creek watershed. The 50% of remaining historical salmon habitat in the Lagunitas Creek watershed is now also behind dams. Because dams also block sediment transport, there is a lack of suitable spawning gravel in many lower stream reaches for spawning. Most spawning in the Lagunitas Creek watershed now takes place in San Geronimo Creek, an unregulated tributary, and the region immediately downstream of its confluence with Lagunitas Creek.
535:," or CCC ESU, and are listed as "endangered" at both the state and federal level. The CCCESU has declined from an estimated 50,000–125,000 adult returns to only 500 spawning adults, and is at high risk for extinction, with only 67 adults returning in 2013. Significant efforts to protect and restore these fish have been underway in the Watershed since the 1980s. Before Seeger Dam was constructed in 1960 by the Marin Municipal Water District (MMWD),
467:. On the west side of the town, the creek is joined by Olema Creek, the largest tributary in the Lagunitas Creek watershed. Olema Creek receives Bear Valley Creek, and mainstem Olema Creek flows for 9 miles (14 km) along the San Andreas Fault Zone, with a catchment area of 14.5 square miles (38 km). After receiving the waters of Olema Creek, Lagunitas Creek turns northward and then empties into the wetlands at the southeast end of
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The
Lagunitas Creek watershed drains 103 square miles (270 km). Most of its major tributaries are dammed, including the Kent, Alpine, Bon Tempe, Lagunitas, and Nicasio reservoirs. The San Geronimo Valley is the last un-dammed headwater tributary of Lagunitas Creek. Each of the reservoirs in the
550:
Strong efforts are also being made to protect and restore undammed, headwater reaches of this
Watershed in the San Geronimo Valley, where upwards of 40% of the Lagunitas Creek salmon spawn each year and where as much as 1/3 of the juvenile salmon (or fry) spend their entire freshwater lives. Roy's
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is also a significant problem in the watershed. Sedimentation from
Lagunitas Creek into Tomales Bay resulted from nineteenth century logging and cattle grazing of riparian plants which otherwise slow erosion. However, sediment loads have been decreasing since the mid-twentieth century and the
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that had accumulated behind the dam. This re-opened critical spawning habitat no longer available on other
Lagunitas Creek tributaries. The Salmon Protection and Watershed Network () leads winter tours for the public to learn about and view these spawning salmon, and also leads year-round
483:. The dams dewater the streambed, especially as the first winter rains fill the reservoirs instead of flowing downstream. Also, water from the late winter rains are partially lost from streamflows because of evaporation from the reservoir surfaces.
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tributary. The modern name, Lagunitas Creek, is derived from the several "lagunitas" (Spanish for "little lakes") which have now been turned into reservoirs by dams in the upper watershed. It was once known as
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opportunities for the public to get involved in stream restoration, monitoring spawning and smolt outmigration, juvenile fish rescue and relocation in the summer, and advocacy and policy development.
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although they were also reported in the San
Lorenzo River in 1915. As of December 2017 a half dozen chum salmon and a dozen pink salmon were counted in Lagunitas Creek.
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Below Kent Lake and the San
Geronimo Creek confluence, the mainstem Lagunitas Creek courses through Samuel P. Taylor State Park, which hosts 600 acres of
1095:
1203:
637:), a Federal Species of Concern and California Species of Special Concern, persist in Little Carson Creek and Big Carson Creek, tributaries of
440:
892:
Tina M. Niemi & N. Timothy Hall (1996). "Historical
Changes in the Tidal Marsh of Tomales Bay and Olema Creek, Marin County, California".
789:
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follows the course of San
Geronimo Creek west and then north along mainstem Lagunitas Creek through Samuel P. Taylor State Park.
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Quantifying
Current and Future Floodplain Habitat for Coho Salmon (Oncorhynchus kisutch) in Lagunitas Creek (Marin County, CA)
431:. The creek begins as three forks, the East Fork, Middle Fork and West Fork. After about a mile (1,600 m), they all flow into
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452:
448:
409:
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Hallock, Richard J.; Fry, Donald H. Jr. "Five
Species of Salmon, Oncorhynchus, in the Sacramento River, California".
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Under the name Paper Mill Creek, Lagunitas Creek is referred to, and crossed several times by car, in the course of
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at the mouth of the creek is no longer aggrading likely due to sediment capture in the many upstream reservoirs.
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355:. Lagunitas Creek feeds several reservoirs on Mt. Tamalpais that supply a major portion of the county's
591:). Pink salmon, also known as humpback salmon, rarely spawn in coastal streams south of tributaries to
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Dam on San Geronimo Creek was built in the 1920s to supply water to a ranch. It was an obstacle for
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has a dam and the biggest problem in the watershed is their blocking of the streams, which prevents
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567:. It was decided to lower the dam instead of completely removing it because of the large amount of
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in November 1915. The southern limit of spawning chum salmon, also known as dog salmon, is
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447:. Just downstream of Kent Lake, San Geronimo Creek joins the creek, right before it forms
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U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data.
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1096:"Marin's Lagunitas Creek Welcomes Unexpected Guests in this Year's Spawning Season"
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Scofield, N. B. (1916). "The humpback and dog salmon taken in San Lorenzo River".
396:. This mill, the Pioneer Paper Mill, was built in 1856, the first in California.
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In the fall of 2017, two additional salmon species appeared in Lagunitas Creek,
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California Place Names: The Origin and Etymology of Current Geographical Names
531:) in Central California. These coho are part of the "Central California Coast
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Lagunitas Creek's major tributaries include San Geronimo Creek, Devils Gulch,
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Feasibility Study for the Reintroduction of the Foothill Yellow-legged Frog (
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U.S. Geological Survey Geographic Names Information System: Lagunitas Creek
744:(Report). Center for Watershed Sciences, University of California, Davis.
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Salmon, Steelhead and Trout in California – Status of an Emblematic Fauna
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324:. It is critically important to the largest spawning runs of endangered
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Lagunitas Creek is cited in Jane Hirshfield's poem "Mountainal," from
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780:. Clovis, California: Quill Driver Books/Word Dancer Press. p.
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The Tomales Bay Watershed Stewardship Plan: A Framework for Action
507:
403:
379:, then Daniels creek. Now the "San Geronimo" survives only as the
813:(Report). Tomales Bay Watershed Council. July 2003. p. 137.
1131:) within the Mt. Tamalpais Watershed, Marin County, California
737:
Peter B. Moyle; Joshua A. Israel; Sabra E. Purdy (2008).
1133:(Report). Marin Municipal Water District. Archived from
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The stream's headwaters begin on the northern slopes of
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state, although they were reported as far south as the
928:(Thesis). California State University, Stanislaus.
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776:Durham's Place Names of the San Francisco Bay Area
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676:List of watercourses in the San Francisco Bay Area
986:Brown, Larry R.; Moyle, Peter B. (July 1, 1991).
455:and is joined by Nicasio Creek, which flows from
316:is a 24-mile-long (39 km) northward-flowing
79:
955:Case Study Report #37 Nicasio Lake Nicasio Creek
1021:"Lagunitas Creek gets odd visitor: pink salmon"
843:. University of California Press. p. C-170
1160:SPAWN, Salmon Protection and Watershed Network
423:. The creek's source is the northern slope of
332:) in the Central California Coast Coho salmon
993:(Report). National Marine Fisheries Service.
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523:is home to the largest remaining wild run of
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870:. Marin County Department of Public Works.
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451:. Lagunitas continues northwest through
25:Arroyo de San Geronimo, Paper Mill Creek
1125:Garcia and Associates (November 2010).
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351:, 1.5 miles (2.4 km) northwest of
1106:from the original on December 30, 2017
1031:from the original on December 30, 2017
1000:from the original on December 28, 2017
967:from the original on December 29, 2016
935:from the original on December 28, 2017
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18:
1180:Video of North American river otter (
427:, a few miles (~6–8 km) east of
7:
1175:Klamath Resource Information System
1094:Camhi, Tiffany (December 9, 2017).
988:Status of Coho Salmon in California
392:built a paper mill on the creek in
16:Stream in California, United States
1199:Rivers of Marin County, California
852:gudde place names lagunitas creek.
14:
666:(New York: Knopf, 2020), p. 111.
265:103 sq mi (270 km)
1019:Mark Prado (November 26, 2017).
50:
31:
874:from the original on 2017-12-28
817:from the original on 2017-12-28
751:from the original on 2012-05-21
533:Evolutionarily Significant Unit
353:Point Reyes Station, California
1184:) in Lagunitas Creek watershed
960:(Report). CalFed Water. 1977.
772:David L. Durham (2001-01-01).
659:, partly set in Marin County.
520:The Lagunitas Creek Watershed
206: • coordinates
151: • coordinates
1:
1204:Rivers of Northern California
334:Evolutionary Significant Unit
131:Physical characteristics
1170:Oakland Museum of California
724:, accessed December 27, 2017
652:Confessions of a Crap Artist
245: • elevation
1100:KQED News California Report
894:Journal of Coastal Research
835:Erwin Gustav Gudde (1960).
681:Samuel P. Taylor State Park
631:foothill yellow-legged frog
629:Remnant populations of the
498:Sir Francis Drake Boulevard
453:Samuel P. Taylor State Park
410:Samuel P. Taylor State Park
347:and terminate in southeast
56:Lagunitas Creek watershed (
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1165:Trout Unlimited California
1025:Marin Independent Journal
919:Adam Fleenor (May 2015).
375:, then by the Spanish as
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1077:California Fish and Game
1055:California Fish and Game
563:upstream of the dam for
459:, another water storage
371:the stream was known as
322:Marin County, California
296: • right
868:"Tomales Bay Watershed"
284: • left
257:20 mi (32 km)
80:
581:Oncorhynchus gorbuscha
539:supported half of the
517:
412:
377:Arroyo de San Geronimo
228:38.08000°N 122.82694°W
173:37.94750°N 122.59722°W
559:trying access to the
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407:
620:Sequoia sempervirens
529:Oncorhynchus kisutch
439:, which drains into
435:, which drains into
400:Watershed and course
330:Oncorhynchus kisutch
249:0 ft (0 m)
233:38.08000; -122.82694
178:37.94750; -122.59722
1137:on November 6, 2014
545:Oncorhynchus mykiss
465:Point Reyes Station
408:Lagunitas Creek in
270:Basin features
224: /
169: /
720:2012-03-29 at the
655:, a 1975 novel by
518:
516:in Lagunitas Creek
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381:San Geronimo Creek
302:San Geronimo Creek
44:in Lagunitas Creek
1182:Lontra canadensis
791:978-1-884995-35-4
601:San Lorenzo River
589:Oncorhynchus keta
512:School of native
457:Nicasio Reservoir
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433:Lake Lagunitas
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635:(Rana boylii)
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624:virgin forest
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1141:December 28,
1139:. Retrieved
1135:the original
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1110:December 29,
1108:. Retrieved
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1035:December 29,
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1004:December 27,
1002:. Retrieved
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971:December 27,
969:. Retrieved
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939:December 27,
937:. Retrieved
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449:the Inkwells
414:
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376:
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338:
336:(CCC ESU).
329:
313:
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125:Marin County
1129:Rana boylii
593:Puget Sound
585:chum salmon
577:pink salmon
553:coho salmon
525:coho salmon
514:coho salmon
492:tidal marsh
469:Tomales Bay
441:Alpine Lake
421:Olema Creek
394:Taylorville
369:Coast Miwok
349:Tomales Bay
345:Coast Range
326:coho salmon
289:Olema Creek
275:Tributaries
231: /
219:122°49′37″W
199:Tomales Bay
176: /
164:122°35′50″W
88:Coast Miwok
76:Native name
42:coho salmon
1209:West Marin
1193:Categories
1061:(1): 5~22.
878:2017-12-27
847:2014-02-02
821:2017-12-27
755:2014-02-08
687:References
597:Washington
373:Tokelalume
262:Basin size
161:37°56′51″N
115:California
81:Tokelalume
39:endangered
639:Kent Lake
477:watershed
461:reservoir
445:Kent Lake
216:38°4′48″N
66:Etymology
1104:Archived
1083:(1): 41.
1029:Archived
995:Archived
962:Archived
930:Archived
872:Archived
815:Archived
746:Archived
718:Archived
670:See also
616:redwoods
569:sediment
565:spawning
388:because
96:Location
37:Pair of
906:4298463
561:habitat
504:Ecology
487:Erosion
367:To the
363:History
343:in the
101:Country
70:Spanish
904:
788:
664:Ledger
609:Oregon
583:) and
419:, and
318:stream
278:
254:Length
140:Source
121:Region
84:
998:(PDF)
991:(PDF)
965:(PDF)
958:(PDF)
933:(PDF)
926:(PDF)
902:JSTOR
749:(PDF)
742:(PDF)
194:Mouth
111:State
1143:2017
1112:2017
1037:2017
1006:2017
973:2017
941:2017
786:ISBN
555:and
595:in
320:in
1195::
1102:.
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1067:^
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
