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Spatial Coverage
- United States[remove]38
- United States.11
- Great Smoky Mountains National Park (N.C. and Tenn.)2
- Great Smoky Mountains National Park.2
- Alaska1
- Arizona1
- Arkansas River Watershed1
- Arkansas River Watershed.1
- Death Valley National Park (Calif. and Nev.)1
- Death Valley National Park.1
- Denver Basin1
- Denver Basin.1
- Dinosaur National Monument (Colo. and Utah)1
- Dinosaur National Monument.1
- Fremont County1
- Fremont County.1
- Grand Canyon National Park (Ariz.)1
- Grand Canyon National Park.1
- Idaho1
- Madison County1
