Collection place
- Alameda County, California25 objects
- Avila Beach (CDP), San Luis Obispo County, California2 objects
- Bear Creek, Santa Barbara County, California16 objects
- Berkeley, Alameda County, California16 objects
- Big Chico Creek watershed, Butte County, California1 objects
- Big Sur River, Monterey County, California2 objects
- Bodega Bay region, Sonoma County, California98 objects
- Bodega Bay, Sonoma County, California1 objects
- Bodega Dunes, Sonoma County, California6 objects
- Bodega Harbor, Sonoma County, California91 objects
- Butte County, California1 objects
- CA-Ala-307, Berkeley, Alameda County16 objects
- CA-Ala-329 (Ryan Mound), Coyote Hills, Fremont9 objects
- CA-But-6, Butte County, California1 objects
- CA-CCo-128, Oakley, Contra Costa County1 objects
- CA-CCo-151, El Sobrante, Contra Costa County1 objects
- CA-CCo-153, Orinda, Contra Costa County2 objects
- CA-Col-11, Colusa County, California1 objects
- CA-Iny-184, Mesquite Flat, Death Valley1 objects
- CA-Iny-185, Mesquite Flat, Death Valley1 objects