Code of Federal Regulations (Last Updated: October 10, 2024) |
Title 50 - Wildlife and Fisheries |
Chapter II - National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Department of Commerce |
SubChapter C - Marine Mammals |
Part 226 - Designated Critical Habitat |
Table 7 to Part 226 - Hydrologic Units and Counties Containing Critical Habitat for Puget Sound Chinook Salmon, and Dams/Reservoirs Representing the Upstream Extent of Critical Habitat
Latest version.
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Hydrologic Unit name Hydrologic Unit number Counties 1 within Hydrologic Unit and within range of ESUDams/Reservoirs Strait of Georgia 17110002 Skagit (WA), Whatcom (WA) Sand Juan Islands 17110003 San Juan (WA) Nooksack 17110004 Skagit (WA), Whatcom (WA) Upper Skagit 17110005 Skagit (WA), Whatcom (WA) Sauk 17110006 Snohomish (WA), Skagit (WA) Lower Skagit 17110007 Skagit (WA), Snohomish (WA) Stillaguamish 17110008 Snohomish (WA), Skagit (WA) Skykomish 17110009 King (WA), Snohomish (WA) Snoqualmie 17110010 King (WA), Snohomish (WA) Tolt Dam Snohomish 17110011 Snohomish (WA) Lake Washington 17110012 King (WA), Snohomish (WA) Landsburg Diversion Duwamish 17110013 King (WA) Puyallup 17110014 King (WA), Pierce (WA) Nisqually 17110015 Pierce (WA), Thurston (WA) Alder Dam Deschutes 17110016 Lewis (WA), Thurston (WA) Skokomish 17110017 Grays Harbor (WA), Jefferson (WA), Mason (WA) Hood Canal 17110018 Clallam (WA), Jefferson (WA), Kitsap (WA), Mason (WA) Puget Sound 17110019 Island (WA), Jefferson (WA), King (WA), Kitsap (WA), Mason (WA), Pierce (WA), Skagit (WA), Snohomish (WA), Thurston (WA) Dungeness-Elwha 17110020 Clallam (WA), Jefferson (WA) Elwha Dam 1 Some counties have very limited overlap with estuarine, riverine, and riparian habitats identified as critical habitat for this ESU. Consult USGS hydrologic unit maps (available from USGS) to determine specific county and basin boundaries.