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Region
- Mars (Planet)194
- United States85
- India65
- GermanyRhineland20
- MassachusettsStellwagen Bank National Marine Sanctuary17
- Stellwagen Bank National Marine Sanctuary (Mass.)17
- California15
- China15
- Black Hills (S.D. and Wyo.)14
- ArizonaMohave County13
- NevadaLincoln County13
- Venus (Planet)12
- Europe10
- Iraq10
- MontanaRosebud County10
- Nevada10
- Rhineland (Germany)10
- West Virginia10
- Afghanistan9
- Ganymede (Satellite)9