Collection place
- South Central California2,381 objects
- Surprise Valley, Modoc County, California2,192 objects
- Northwestern California2,141 objects
- Napa Valley, Napa County, California2,109 objects
- Siskiyou County, California1,768 objects
- Placer County, California1,553 objects
- Fresno County, California1,550 objects
- Southern California1,520 objects
- Middle Napa Valley, Napa County, California1,484 objects
- Churchill County, Nevada1,448 objects
- Karlo area, Lassen County, California1,348 objects
- CA-Las-7, Karlo area, Lassen County1,339 objects
- CA-Mod-204, Modoc County, California1,301 objects
- Pershing County, Nevada1,217 objects
- CA-Sac-2 or 3 or 6 ('Johnson Mound'), Sacramento County, California1,173 objects
- CA-Sac-6, Sacramento County, California1,173 objects
- Contra Costa County, California1,152 objects
- Northwestern United States1,125 objects
- Eagle Lake, Lassen County, California1,119 objects
- Marin County, California1,072 objects