Surface Water Management
Watersheds of Snohomish County
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Lake Washington Watershed
Detailed maps of local watersheds within Snohomish County can be viewed and downloaded by clicking on a watershed below. Some watersheds have been grouped into a single map for convenience. Maps are available as low-resolution JPEG images for online viewing, or as PDF files for zooming in, viewing, and printing to letter-sized (8.5" x 11") paper.
Select a file format:
Low-resolution JPEG image
The map below is available as a pdf file.
Lake Washington Watershed Information
Major rivers: Swamp Creek, North Creek, Little Bear Creek.