Collection place
- CA-Son-291, Sonoma County, California444 objects
- CA-Fre-30, Fresno County, California374 objects
- CA-Son-290, Sonoma County, California354 objects
- CA-Fre-27, Fresno County, California342 objects
- Marin County, California331 objects
- Stanislaus County, California329 objects
- CA-Mrn-234, Marin County, California313 objects
- Honey Lake, Lassen County, California221 objects
- Honey Island, Honey Lake, Lassen County195 objects
- Secret Valley, Lassen County, California178 objects
- Kern County, California144 objects
- San Francisco County, California139 objects
- City Dump, San Francisco, San Francisco County137 objects
- San Francisco, San Francisco County, California137 objects
- CA-Las-16, Honey Island, Lassen County132 objects
- Bodega Head, Bodega Bay, Sonoma County123 objects
- North Central California118 objects
- CA-Las-15, Lassen County, California111 objects
- CA-Sta-5, Stanislaus County, California103 objects
- Lake Isabella Reservoir, Kern County, California102 objects