Phone: 503-823-7740
Fax: 503-823-6995
1120 SW 5th Avenue, Suite 1000, Portland, OR 97204
Projects
Columbia Slough Confluence Habitat Enhancement Project
Restoration at the Willamette River - Columbia Slough confluence
Big Four Corners Land Acquisition
Protection and restoration of Portland's fourth largest natural area
Columbia Slough Restoration Project
Read details of the Columbia Slough Corps of Engineers 1135 Restoration Project
Mason Flats Wetland Enhancement Project
Construction begins this summer
Clean Rivers Education
Learn about Environmental Services education programs.
Columbia Slough Watershed Council
Learn about the Council's activities in the Columbia Slough watershed.
Watershed Revegetation Program
Read about Portland's program to remove invasive, non-native plants and restore native vegetation.