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Watersheds, rivers, streams and lakes
Watersheds of King County
Countywide watershed information
Learn about watersheds and how to take care of your watershed, look up your basin steward for help and find out what King County is doing to monitor and improve watersheds across King County.
Central Puget Sound Watershed
Find info and services for land draining directly to Central Puget Sound including Vashon Island.
Cedar River - Lake Washington Watershed
Learn about the rivers, streams, lakes and the land area draining to the Cedar River, Lake Washington and flowing out the Hiram Chittenden Locks.
Sammamish Watershed
Learn about the land and waters that flow into Lake Sammamish and out the Sammamish River into Lake Washington.
Snoqualmie - Skykomish River Watershed
Learn about the King County rivers, streams, lakes and the land area draining to the Snoqualmie River, Skykomish River and flowing out the Snohomish River to Port Gardner Bay
Green - Duwamish River Watershed
Learn about the land and waters that flow into the Green River and out the Duwamish into Elliott Bay.
White River Watershed
Learn about the King County rivers, streams, lakes and the land area draining to the White River and out to the Puyallup and Commencement Bay.