- North America66 objects
- The Americas66 objects
- United States66 objects
- Southwestern United States48 objects
- Arizona46 objects
- Bouse site, La Paz County, Arizona43 objects
- La Paz County, Arizona43 objects
- CA-SBr-118, San Bernardino County, California18 objects
- California18 objects
- San Bernardino County, California18 objects
- Southern California18 objects
- Yuma 9, Yuma County, Arizona3 objects
- Yuma County, Arizona3 objects
- Grand Gulch #7, San Juan County, Southern Utah2 objects
- San Juan County, Utah2 objects
- Southern Utah2 objects
- Utah2 objects