Collection place
- Ahumada Municipality, Chihuahua, Mexico2 objects
- Alameda County, California77 objects
- Alamo Plain, Ensenada municipality, Baja California6 objects
- Angwin area, Napa County, California2 objects
- Arandas, Jalisco, Mexico1 objects
- Arroyo Rosario, Baja California state, Mexico1 objects
- Arroyo Santa Úrsula, Baja California5 objects
- Arroyo de los Cuadro Amigos, Buenaventura Municipality, Chihuahua1 objects
- Atil Municipality, Sonora, Mexico2 objects
- Azcapotzalco, Mexico City, Mexico3 objects
- Baja California peninsula, Mexico20 objects
- Baja California, Mexico20 objects
- Barro area, Napa Valley, Napa County14 objects
- Beach east of Lake Annie, Modoc County, California1 objects
- Belize1 objects
- Benicia, Solano County, California1 objects
- Berryessa Valley, Napa County, California12 objects
- Big Pine, Inyo County, California1 objects
- Black Rock Desert Wilderness, Humboldt County, Nevada2 objects
- Bodega Bay region, Sonoma County, California1 objects