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Region
- Mars (Planet)19
- HawaiiMauna Loa (Hawaii Island)5
- Mauna Loa (Hawaii Island, Hawaii)5
- Ganymede (Satellite)4
- Appalachian Basin3
- MissouriShannon County3
- TexasEdwards Aquifer3
- ArizonaSanta Cruz County2
- CaliforniaYosemite National Park2
- Edwards Aquifer (Tex.)2
- Illinois Basin2
- Michigan Basin (Mich. and Ont.)2
- MissouriDent County2
- MissouriTexas County2
- TexasHays County2
- TexasTrinity Aquifer2
- Venus (Planet)2
- Yosemite National Park (Calif.)2
- Afghanistan1
- AfghanistanBāmīān (Province)1