Collection place
- Marin County, California177 objects
- Baja California, Mexico175 objects
- Churchill County, Nevada175 objects
- Navajo County, Arizona172 objects
- Northeastern Arizona172 objects
- Contra Costa County, California170 objects
- San Luis Obispo County, California168 objects
- Navajo Reservation, Navajo County, Arizona167 objects
- Coconino County, Arizona149 objects
- Sacramento County, California143 objects
- CA-Iny-76, Inyo County, California137 objects
- Ensenada Municipality, Baja California, Mexico134 objects
- Santa Barbara County, California134 objects
- CA-SLO-463, San Luis Obispo County, California132 objects
- Upper Napa Valley, Napa County, California128 objects
- CA-Mod-197, Modoc County, California124 objects
- Lassen County, California122 objects
- CA-Ala-309, Emeryville, Alameda County118 objects
- Emeryville, Alameda County, California118 objects
- Barro area, Napa Valley, Napa County115 objects