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Columbia Slough Watershed Council



The Columbia Slough Watershed Council is a diverse group of neighbors, property owners, businesses, environmental groups, recreation advocates, and government agencies who work to restore and enhance the 60 miles of waterways known as the Columbia Slough, located in Portland, Gresham, and Fairview. The Columbia Slough Watershed Council is a non-profit 501(c)(3) organization.

Our Vision for the Watershed: An urban watershed rich in clean water and healthy habitats that supports the needs of fish, wildlife, plants and people.

Click here to view the short video produced by Portland Monthly about our work. (The Council was honored in 2012 with a Light A Fire award)

For more information: (503) 281-1132 or

Quienes Somos

Resource Description
Annual Summary
Annual Summary 2017-18
Annual Report
Columbia Slough Watershed Council Annual Report FY 2017-18
Letter of Support Process
Information on how to request a letter of support from the Council.