Mother Lode Chapter Sierra Club - Representing 18,000 members in 24 counties in Northern and Central California
Alpine - Amador - Butte - Calaveras - Colusa - El Dorado - Glenn - Lassen - Modoc - Nevada - Placer – Plumas - Sacramento - San Joaquin - Shasta - Sierra - Siskiyou - Solano - Stanislaus - Sutter - Tehama - Tuolumne - Yolo - Yuba