Geography
Pennsylvania
30 results
Florida
16 results
Kansas
5 results
Mississippi
5 results
Arkansas
4 results
Indiana
4 results
Montana
4 results
New Mexico
4 results
Alabama
3 results
Missouri
3 results
Wisconsin
3 results
Alaska
2 results
Colorado
2 results
Franklin County
2 results
Luzerne County
2 results
Michigan
2 results
New York (State)
2 results
Wyoming
2 results
Allegheny County
1 results
Arkansas Valley
1 results
Armstrong County
1 results
Arnold Air Force Base
1 results
Baraga County
1 results
Beaver County
1 results
Berks County
1 results
Berwick Region
1 results
Bradford County
1 results
Butler County
1 results
California
1 results
Cambria County
1 results
Charlotte County
1 results
Chester County
1 results
Church Rock
1 results
Clarion County
1 results
Clay County
1 results
Coffee County
1 results
Collier County
1 results
Contra Costa County
1 results
Crawford County
1 results
Delaware County
1 results
Elkhart County
1 results
Elliott Key
1 results
Elliott Key (Fla.)
1 results
Erie County
1 results
Fakahatchee Strand (Fla.)
1 results
Fayette County
1 results
Floridan Aquifer
1 results
Gallup
1 results
Garfield County
1 results
Glacier County
1 results
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