Spatial Coverage
- Front Range (Colo. and Wyo.)1
- Front Range.1
- George, Lake (N.Y. : Lake)1
- Georgia1
- Georgia.1
- Glen Canyon (Utah and Ariz.)1
- Glen Canyon National Recreation Area (Utah and Ariz.)1
- Glen Canyon National Recreation Area.1
- Glen Canyon.1
- Grafton County1
- Grafton County.1
- Grand Canyon National Park (Ariz.)1
- Grand Canyon National Park.1
- Great Lakes.1
- Gulf of Mexico1
- Gulf of Mexico.1
- Hidalgo County (Tex.)1
- High Plains (U.S.)1
- High Plains.1
- Hudson River Estuary (N.Y. and N.J.)1
