North Coast Environmental CenterA coalition "educating, agitating and litigating on behalf of the environment in the Klamath~Siskiyou region of northwestern California." Arcata.
Watershed Stewards ProjectAn AmeriCorps community-based watershed restoration program working in sixteen coastal communities. Fortuna.
Humboldt BaykeeperHumboldt Baykeeper is working to protect and enhance Humboldt Bay and near-shore waters through community education, water-quality monitoring and pollution control.
Astronomers of HumboldtAmateur astronomers hosting public presentations and public observing sessions. Club members and their equipment are available as a public service for educational, charitable, and school groups.
Environmental Protection Information CenterOrganization working to protect biodiversity and ancient forests. Garberville.