Collection place
- El Llano, Apatzingán, Apatzingan5 objects
- Great Plains, North America5 objects
- Karlo area, Lassen County, California5 objects
- Nevada5 objects
- Siskiyou County, California5 objects
- Solano County, California5 objects
- Central California4 objects
- Central California coast4 objects
- Columbia River Basin, United States4 objects
- Contra Costa County, California4 objects
- Humboldt Lake Bed, Pershing County, Nevada4 objects
- Lone Pine (CDP), Inyo County, California4 objects
- Lone Pine area, Owens Valley, Inyo County4 objects
- Monterey County, California4 objects
- Owens Valley, Inyo County, California4 objects
- Pershing County, Nevada4 objects
- Bebelama, San Lorenzo Valley, Sinaloa3 objects
- Berryessa Valley, Napa County, California3 objects
- CA-Iny-38, Lone Pine (CDP), Inyo County3 objects
- CA-Mnt-108, Monterey, Monterey County3 objects