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TCA Projects

Projects of note, involving TCA members
— January 8th, 2021
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  Thornton Creek Watershed Background

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A Healthy Watershed Needs a Healthy Forest Canopy

A Healthy Watershed Needs a Healthy Forest Canopy

Active Projects

Environmental Damage and Homeless Camps

Environmental Damage and Homeless Camps

Active Projects

Community Scientist Water Quality Efforts on Thornton Creek

Community Scientist Water Quality Efforts on Thornton Creek

Active Projects

Watershed Wildlife Photo Gallery

Watershed Wildlife Photo Gallery

Photo Galleries

Thornton Creek Noxious Weeds Knockout Project

Thornton Creek Noxious Weeds Knockout Project

Active Projects

Influence of the Confluence: 2016

Influence of the Confluence: 2016

Photo Galleries

Knickerbocker Reach Floodplain

Knickerbocker Reach Floodplain

Past Projects

Thornton Creek Alliance (TCA) is a grassroots, nonprofit organization dedicated to preserving and restoring an ecological balance in the Thornton Creek watershed, a drainage of approximately 11.6 square miles in northeast Seattle and Shoreline.

Contact Info

Thornton Creek Alliance
P.O. Box 25690
Seattle, WA 98165-1190

  thorntoncreekalliance@gmail.com

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