- North America7 objects
- The Americas7 objects
- United States✖Remove constraint Collection place: United States7 objects
- California6 objects
- Northern California5 objects
- Northwestern California5 objects
- Central California1 objects
- Humboldt County, California1 objects
- Klamath River, Humboldt County, California1 objects
- Knights Ferry, Stanislaus County, California1 objects
- Lincoln County, Nevada1 objects
- Martin's Ferry, Humboldt County, California1 objects
- NV-Ln-9, Lincoln County, Nevada1 objects
- NV-Ln-9b, Lincoln County, Nevada1 objects
- Nevada1 objects
- South Central California1 objects
- Stanislaus County, California1 objects