- Baja California peninsula, Mexico27 objects
- Paraguay27 objects
- Peru27 objects
- Baja California Sur, Mexico26 objects
- Comondú Municipality, Baja California Sur, Mexico26 objects
- Comondú region, Comondú municipality, Baja California Sur26 objects
- Grimes Point Caves, Churchill County, Nevada26 objects
- Site 100 (Massey), Comondú region, Comondú Municipality, Baja California Sur26 objects
- NV-Ch-16 (Hidden Cave), Churchill County, Nevada25 objects
- Northern California25 objects
- East Asia24 objects
- Japan24 objects
- Africa21 objects
- San Juan County, Utah20 objects
- Southern Utah20 objects
- Utah20 objects
- Grand Gulch #9, San Juan County, Southern Utah19 objects
- Eastern California17 objects
- Inyo County, California17 objects
- Southeast Asia16 objects