Collection place
- North America333 objects
- The Americas333 objects
- United States320 objects
- California258 objects
- Central California135 objects
- South Central California135 objects
- Kern County, California111 objects
- Northern California84 objects
- Northwestern California56 objects
- Northwestern United States32 objects
- Southern California31 objects
- Klamath River area, Northwestern California, California21 objects
- Southwestern United States20 objects
- Humboldt County, California17 objects
- North Central California16 objects
- Arizona14 objects
- Central Oregon13 objects
- Oregon13 objects
- Alaska12 objects
- Kelso Valley, Kern County, California12 objects