Collection place
- Sonoma Valley, Sonoma County, California10 objects
- Upper Sonoma Valley, Sonoma County, California10 objects
- Churchill County, Nevada8 objects
- Santa Cruz Island, Channel Islands, Southern California8 objects
- Santa Rosa Island, Santa Barbara Channel Islands, Southern California8 objects
- CA-SCrI-147, Santa Cruz Island, Channel Islands7 objects
- NV-Ch-126, Churchill County, Nevada7 objects
- Northwestern California7 objects
- Angwin area, Napa County, California6 objects
- CA-Nap-37, Napa Valley, Napa County6 objects
- Humboldt County, California5 objects
- Illinois4 objects
- North Central California4 objects
- Northern Sierras, Northern California4 objects
- Southern Great Lakes states, United States4 objects
- Southwestern United States4 objects
- Arizona3 objects
- Contra Costa County, California3 objects
- Siskiyou County, California3 objects
- Southern central United States3 objects