Collection place
- Churchill County, Nevada219 objects
- Marin County, California213 objects
- Humboldt Lake region, Churchill County, Nevada206 objects
- Monterey County, California204 objects
- Santa Rosa Island, Santa Barbara Channel Islands, Southern California197 objects
- CA-SRI-NL-1, Santa Rosa Island, Channel Islands194 objects
- Lassen County, California192 objects
- NV-Ch-15, Churchill County, Nevada188 objects
- Northern Sierras, Northern California166 objects
- Sonoma County, California163 objects
- Contra Costa County, California158 objects
- Napa County, California158 objects
- Eastern California144 objects
- Mexico143 objects
- Inyo County, California142 objects
- Northern Mexico139 objects
- Northwest Mexico139 objects
- Southern Monterey Coast, Monterey County, California136 objects
- Pershing County, Nevada134 objects
- Mendocino County, California127 objects