San Francisco Bay Chapter Sierra Club

Get Involved with a Local Group

The Bay Chapter is divided geographically into eight local groups within our four counties (see map). Each group is led by volunteer members.

To find out more and to volunteer with any of these groups, call any of the leaders listed for them on our Chapter Leadership Roster. For current information about coming group activities and meetings, see the Chapter Calendar.

San Francisco Group Delta channels south Richmond shoreline Marin County open space
Briones Regional Park Coyote Hills Tilden Park Altamont pass

Regional Groups of the San Francisco Bay Chapter

Delta Group

Delta channels

The Delta Regional Group covers eastern Contra Costa County from Bay Point to Discovery Bay. It offers regular outdoor activities, and our members work on many conservation issues, including

  • Urban growth and land-use planning
  • Transportation
  • Toxics and solid waste
  • Air and water quality.

General membership meetings with interesting programs are usually held on the third Tuesday or Wednesday of February, May, September, and November at the Antioch Library, 501 West 18th St. in Antioch. For details, see the Yodeler or our Group newsletter, available by $5 subscription from:

  • Janess Hanson
  • 431 Levee Road
  • Bay Point, CA 94565.

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Marin Group

Marin County open space

The Sierra Club Marin Group (website) consists of the approximately 4,700 Club members who live in Marin County.

Group activities include:

  • Hikes and outings to visit and learn about Marin's natural beauty and resources--to Point Reyes National Seashore, the Golden Gate National Recreation Area, Mount Tamalpais, China Camp State Park, Tomales Bay, San Pablo Bay, and more.
  • Studying and speaking out on issues that affect Marin's environment: development proposals, water supply, transportation, agriculture, parks, recreation, trails, wildlife protection, toxics, and environmental justice. We lobby city, county, and other officials on these issues.

The Executive Committee of the Marin Group consists of up to 11 elected representatives of the membership. The Group Executive Committee meets on the second Wednesday of every month, from 7 - 9.

Members are encouraged to participate, and to bring issues to the attention of the committees. Standing committees include Conservation, Political, and Outings.

The Executive Committee always welcomes people who want to be more actively involved. Please contact us.

For more information, see the Marin Group website.

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Mount Diablo Group

Briones Regional Park

The membership of the Mount Diablo Group is drawn from central Contra Costa County, from Martinez to San Ramon to Lamorinda. Activities of the group include conservation, outings, and bi-monthly programs.

The Conservation Committee studies and speaks out on the environmental concerns of the county. We invite interested residents to participate.

Outings are an excellent means of meeting other people with similar interests in our beautiful outdoor environment. Our outings include a variety of day hikes and other activities that appeal to members with a wide range of interests and abilities.

Our Executive Committee meets the fourth Wednesday of odd months at 7 pm. Members and guests are always invited. Check with one of the officers to confirm time and location.

General membership meetings are usually held the second Wednesday of January, March, May, July, September, and November at 7:30 pm at the Ygnacio Valley Library, 2661 Oak Grove Road, in Walnut Creek.

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Northern Alameda County Group

Tilden Park

The Northern Alameda County (NAC) Group (website) considers urban environmental issues in the cities of Oakland, Berkeley, Albany, Emeryville, Alameda, Piedmont, and San Leandro. These issues can include housing, transportation, air quality, environmental justice, and natural-resource protection.

NAC's Conservation Committee meets at 7 pm on the fourth Monday of every month at the Chapter Office (wheelchair-accessible), 2530 San Pablo Ave. in west Berkeley. For directions and bus information, see About the Bay Chapter. Minutes are posted here.

NAC's nine-member Executive Committee convenes at the same place once the Conservation Committee has adjourned (usually by 8:45 pm) to consider conservation actions, political endorsements, and recommendations to higher-level Club entities.

For more information, see NAC Group website.

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San Francisco Group

San Francisco Group

Join the other 7,000 members of the San Francisco Group in outings, social events, and conservation activities. San Francisco conservation priorities include

  • Preservation of Golden Gate Park
  • Reduction and clean-up of toxics
  • Transit improvements
  • Acquisition and protection of open space
  • Recycling and resource conservation
  • Sustainable job development
  • Wetlands restoration and protection
  • Water conservation, treatment, and planning

Your help is needed to formulate and implement Sierra Club policy on these and other issues.

The Group Conservation Committee meets regularly on the third Tuesday of each month, from  6 - 8 pm at Club Headquarters, 85 Second St. (near Market), and the ExComm meets after it.

For more information call our hot-line/message phone at (415)977-5578.

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Southern Alameda County Group

Coyote Hills

The Southern Alameda County Group includes members in Hayward, Union City, Newark, and Fremont, as well as unincorporated Ashland, Cherryland, Castro Valley, Fairview, and San Lorenzo.

The Group ExComm usually meets in even months on the fourth Wednesday at 7 pm in Hayward. The ExComm weighs and takes positions on environmental issues facing our communities, including development proposals, water resources, agriculture, preservation of open space, land use, trails, air quality, creeks, conservation, and political endorsements.

For further information, contact ExComm member Toni Wise at or (510)999-1486.

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TriValley Group

Altamont pass

The TriValley Group includes three incorporated cities, Dublin, Livermore, and Pleasanton, plus Sunol and a large amount of unincorporated land. To get involved, contact Group chair Janis Kate-Turner at (925)344-6150 or

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West Contra Costa County Group

south Richmond shoreline

The West Contra Costa Group includes the communities from Kensington to Crockett. To get involved, contact Group chair Norman La Force at (510)526-4362 or

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Map of local group areas

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