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Sierra Club – San Francisco Bay Chapter

The San Francisco Bay Chapter is home to the 40,000 Sierra Club members in Alameda, Contra Costa, Marin, and San Francisco counties. Organizes hikes and other outings, advocates on local and national political issues, and endorses candidates for public office.

Contact Information

2530 San Pablo Ave., Suite 1
Berkeley 94702

Phone: (510) 848-0800


Bay Nature