- North America✖Remove constraint Collection place: North America10 objects
- The Americas10 objects
- Mexico5 objects
- Canada3 objects
- California2 objects
- Northern California2 objects
- United States2 objects
- CA-Sac-43 (Brazil Mound), Sacramento, Sacramento County1 objects
- Humboldt County, California1 objects
- Klamath River below Weitchpec, Humboldt County, California1 objects
- Klamath River, Humboldt County, California1 objects
- North Central California1 objects
- Northwestern California1 objects
- Sacramento County, California1 objects
- Sacramento, Sacramento County, California1 objects