Collection place
- Northern Sierras, Northern California5 objects
- Palm Tract, Contra Costa County, California5 objects
- Southwestern United States5 objects
- Unincorporated eastern Contra Costa County, California5 objects
- Amador County, California4 objects
- Eastern California4 objects
- Modoc County, California4 objects
- New Mexico4 objects
- Northwestern New Mexico4 objects
- Western New Mexico4 objects
- Bishop, Inyo County, California3 objects
- Inyo County, California3 objects
- Madera County, California3 objects
- Mariposa County, California3 objects
- Mendocino County, California3 objects
- Santa Fe County, New Mexico3 objects
- Southern California3 objects
- CA-CCo-298, Richmond, Contra Costa County2 objects
- CA-CCo-300, Richmond, Contra Costa County2 objects
- Colorado, Mariposa County, California2 objects