World Library  
Flag as Inappropriate
Email this Article

Klamath Basin

Article Id: WHEBN0007390707
Reproduction Date:

Title: Klamath Basin  
Author: World Heritage Encyclopedia
Language: English
Subject: Klamath River, Northern California, Klamath Basin National Wildlife Refuge Complex, Tule Lake, List of National Historic Landmarks in California
Collection: Klamath Mountains, Klamath River, Landforms of Del Norte County, California, Landforms of Humboldt County, California, Landforms of Jackson County, Oregon, Landforms of Klamath County, Oregon, Landforms of Lake County, Oregon, Landforms of Modoc County, California, Landforms of Oregon, Landforms of Siskiyou County, California, Landforms of Trinity County, California, Northern California, Regions of California, Regions of Oregon, Rogue River-Siskiyou National Forest, Watersheds of California, Watersheds of the United States
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Klamath Basin

Klamath Basin

The Klamath Basin is the region in the U.S. states of Oregon and California drained by the Klamath River. It contains most of Klamath County and parts of Lake and Jackson counties in Oregon, and parts of Del Norte, Humboldt, Modoc, Siskiyou, and Trinity counties in California. The 15,751-square-mile (40,790 km2) drainage basin is 35% in Oregon and 65% in California. In Oregon, the watershed typically lies east of the Cascade Range, while California contains most of the river's segment that passes through the mountains. In the Oregon-far northern California segment of the river, the watershed is semi-desert at lower elevations and dry alpine in the upper elevations. In the western part of the basin, in California, however, the climate is more of temperate rainforest, and the Trinity River watershed consists of a more typical alpine climate.

Contents

  • Distribution of subwatersheds 1
  • Major bodies of water 2
  • Watershed 3
  • Communities 4
  • See also 5
  • References 6
  • External links 7

Distribution of subwatersheds

Map of Klamath River watershed showing subwatershed boundaries

The drainage basins of the Williamson and Sprague Rivers, in Oregon, are to the north and northeast of Upper Klamath Lake. Together, the two watersheds cover 3,069 square miles (7,950 km2), or 19.4% of the Klamath River watershed.[1][2][3] The basin of the Lost River, the largest subwatershed by area, lies to the southeast of Upper Klamath Lake and to the east of Lower Klamath Lake. This covers 3,009 square miles (7,790 km2) or 19.1% of the Klamath River watershed - nearly as much as the Williamson and Sprague. Proceeding west, the adjoining Butte Creek, Shasta, Scott and Salmon River watersheds have 603 square miles (1,560 km2), 795 square miles (2,060 km2), 813 square miles (2,110 km2), and 750 square miles (1,900 km2), respectively. These account for 4.3%, 5%, 5.2%. and 5% of the Klamath River watershed, respectively, or 19.5% of the watershed if put together.[1][2][3]

Further southwest, the watershed of the Trinity River, the second largest subwatershed of the Klamath, has 2,965 square miles (7,680 km2) or 19% of the watershed. The watershed of the South Fork Trinity River is 980 square miles (2,500 km2) - 33% of the Trinity watershed or 6% of the Klamath watershed. The primary tributaries of the Klamath together account for 77% of the total Klamath watershed - the remaining land area is drained by smaller tributaries such as Jenny Creek, Fall Creek and Blue Creek.[1][2][3]

Major bodies of water

The Upper Klamath Basin today, showing the remnants of the vast Lake Modoc

Upper Klamath Lake is the largest present-day body of water in the Klamath River watershed, covering 96 square miles (250 km2) on average, with a shoreline of 87 miles (140 km). It is also the largest freshwater lake in the state of Oregon.[4] Historically, Lower Klamath Lake and Tule Lake were one interconnected freshwater marsh that totaled 195 square miles (510 km2) - more than twice the present-day dimensions of Upper Klamath Lake, and larger than Lake Tahoe in central California. This interconnected wetland still supports up to 3.7 million migrating birds per year.[5] In wet years, the two lakes would connect to Upper Klamath Lake, forming one huge body of water. These lakes occupy the basin that was prehistorically occupied by Lake Modoc, a 1,100-square-mile (2,800 km2) freshwater lake that covered the entire Upper Klamath Basin, or 7% of the watershed - an area three times larger than the massive Salton Sea in southern California. This lake existed up to 11,000 years ago at the end of the most recent ice age.[6] Today, Upper Klamath Lake encompasses just 0.6% of the Klamath watershed.

There are also several entirely artificial bodies of water in the watershed - including Lake Ewauna, J.C. Boyle Reservoir, Copco Lake, and Iron Gate Reservoir on the main Klamath.[7] Lake Ewauna, also called Keno Reservoir, is 3.8 square miles (9.8 km2) in size, and is about 20 miles (30 km) long.[8] The J.C. Boyle Reservoir is much smaller, with a surface area of 0.65 square miles (1.7 km2).[9] Copco Reservoir is about 5.4 miles (8.7 km) long and is 1 square mile (2.6 km2) in area.[10] Iron Gate Reservoir covers 1.4 square miles (3.6 km2) and is about 6.8 miles (10.9 km) long.[11] Together, the four lower mainstem reservoirs total just 6.85 square miles (17.7 km2), or 0.04% of the Klamath River watershed.

Trinity Lake, on the mainstem of the Trinity River, is the largest tributary reservoir in the Klamath River watershed. At 25 square miles (65 km2) in size, it is larger than all four mainstem Klamath reservoirs combined (excluding Upper Klamath Lake).[12]

Landscape of the basin

Watershed

The Klamath Basin watershed includes:

These three rivers are located above (north) of the Klamath Lake basin:

These features are inside or near the Klamath Lake basin:

These are the major downstream tributaries of the Klamath River:

Communities

Communities in the Klamath Basin include:

See also

References

  1. ^ a b c Hydrology, Ecology and Fishes of the Klamath River Basin, p.27
  2. ^ a b c BEST and WSTB, p. 26
  3. ^ a b c "Klamath River Basin - Overview".  
  4. ^ "Klamath Lake". Oregon Lakes Association. www.oregonlakes.org. Retrieved 2009-08-21. 
  5. ^ Blake, Blake and Kittredge, p. 1
  6. ^ Delong, Jay. "Walking in 100-Year-Old Footsteps in Southern Oregon". North American Native Fishes Association. www.nanfa.org. Retrieved 2009-08-21. 
  7. ^ "Klamath River Dam and Sediment Investigation" (PDF). Yurok Tribe of California. www.yuroktribe.org. November 2006. Retrieved 2009-08-21. 
  8. ^ "Lake Ewauna/Keno Reservoir Reach Location and Characteristics" (PDF). PacifiCorp Klamath Hydroelectric Project. PacifiCorp. Retrieved 2009-08-21. 
  9. ^ "J.C. Boyle Reservoir - Reservoir Location and Characteristics" (PDF). PacifiCorp Klamath Hydroelectric Project. PacifiCorp. Retrieved 2009-08-21. 
  10. ^ "Project Description". Klamath Basin Tribal Water Quality Work Group. www.klamathwaterquality.com. Retrieved 2009-08-21. 
  11. ^ "Iron Gate Reservoir: Reservoir Location and Characteristics" (PDF). PacifiCorp Klamath Hydroelectric Project. www.pacificorp.com. Retrieved 2009-08-21. 
  12. ^ "Shasta/Trinity River Division Project".  

External links

Congressional hearings
  • The Klamath River Basin: Hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Thirteenth Congress, First Session ... June 20, 2013
  • Klamath Basin: Hearing before the Subcommittee on Water and Power of the Committee on Energy and Natural Resources, United States Senate, One Hundred Thirteenth Congress, Second Session, to Hear Testimony on S. 2379, the "Klamath Basin Water Recovery and Economic Restoration Act of 2014," June 3, 2014
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.