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Region
- United States7
- India3
- New England3
- ArizonaCoconino County1
- ArizonaNavajo County1
- Arkansas1
- Atlanta Region (Ga.)1
- Columbia River Watershed1
- Ellsworth Air Force Base (S.D.)1
- Florida1
- Latin America1
- Madhya Pradesh (India)1
- Mediterranean Region1
- MexicoMexico City1
- Middle East1
- Pacific Area1
- Pacific Ocean1
- Pierre Shale1
- Puerto Rico1
- South DakotaEllsworth Air Force Base1