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POL Government Bureaus & Offices Environmental Services What We Do Watershed Management Portland's Watersheds Willamette Watershed
Willamette Watershed
Willamette Watershed Characterization Report
Watershed Enhancement Projects
Willamette Subwatershed Improvement Strategies
Actions for watershed health
Willamette River History
How the Willamette River developed
Willamette River Basin
Oregon's largest watershed
Portland in 1852
An early map of Portland

 

Portland's Willamette Watershed

 

The Willamette Watershed includes Forest Park, downtown Portland, industrial districts on both sides of the river, and the city’s most densely populated residential  neighborhoods. It extends from near Sauvie Island to just north of Lake Oswego and from the West Hills to the suburban neighborhoods east of I-205.

 

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