Friends of the Eel RiverDedicated to restoring the Eel River and its tributaries to their natural state.
The Buckeye ConservancyDedicated to the promotion, communication, and implementation of the ideals and policies that support the ecologic and economic sustainability of natural resources and open space in family ownership.
Fishermen's Marketing Association, Inc.Groundfish and shrimp fishermen interest group, based in Eureka.
Green WheelsInformation on sustainable transportation options including buses, bikes, and rideshare links. Advocacy organization for developing sustainable transportation.
North Coast Environmental CenterA coalition "educating, agitating and litigating on behalf of the environment in the Klamath~Siskiyou region of northwestern California." Arcata.
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.
