- North America636 objects
- Southern central United States✖Remove constraint Collection place: Southern central United States636 objects
- The Americas636 objects
- United States636 objects
- Arkansas340 objects
- Texas175 objects
- Missouri75 objects
- Walsh Ranch, Williamson County, Texas64 objects
- Williamson County, Texas64 objects
- Jefferson County, Missouri32 objects
- Kansas20 objects
- Louisiana15 objects
- Dry Creek site, Jefferson County, Missouri12 objects
- Mastodon State Historic Site, Jefferson County, Missouri11 objects
- St. Tammany Parish, Louisiana7 objects
- Tchebuneta River, St. Tammany Parrish, Louisiana7 objects
- Hammi's Farm, Jefferson County, Missouri6 objects
- Midwestern United States6 objects
- Alpine quarry area sites, Brewster County, Texas4 objects
- Brewster County, Texas4 objects