The Muir  Heritage Land Trust www.muirheritagelandtrust.org

East Bay Regional Parks      http://www.ebparks.org/

Sierra Club    http://www.sierraclub.org

Bay Area Ridge Trail   http://www.ridgetrail.org/

San Francisco Bay Wildlife website http://www.sfbaywildlife.info/index.htm

San Francisco Bay Trail   http://baytrail.abag.ca.gov/

Carquinez Regional Environmental Center  http://www.creecyouth.org

San Francisco Bay Wildlife Society http://www.sfbws.org/

Bay Area Hiker  http://www.bahiker.com/eastbayhikes/carquinezwest.html

San Francisco Bay Flyway Group: http://www.sfbayflywayfestival.com/

Citizens for East Shore Parks: http://www.eastshorepark.org/

East Bay M.U.D. Water Conservation