- North America✖Remove constraint Collection place: North America279 objects
- The Americas279 objects
- United States278 objects
- California188 objects
- Northern California152 objects
- North Central California146 objects
- Sacramento County, California146 objects
- CA-Sac-31 (Joe Mound #1), Sacramento, Sacramento County105 objects
- Sacramento, Sacramento County, California105 objects
- Greenville, Horry County, North Carolina82 objects
- Horry County, North Carolina82 objects
- North Carolina82 objects
- Southeastern United States82 objects
- Tar River, Greenville, Horry County82 objects
- CA-Sac-160 (Richards site), Sacramento County, California41 objects
- Marin County, California30 objects
- San Francisco Bay Area, California30 objects
- CA-Mrn-234, Marin County, California29 objects
- Central California6 objects
- Clark County, Nevada6 objects