Spatial Coverage
- McKinley County15
- Massachusetts13
- Mohave County13
- South Carolina13
- Vermont13
- Campbell County12
- United States12
- New York (State)10
- North Carolina10
- West Virginia10
- Wisconsin10
- Cochise County9
- Garfield County9
- Ozark Mountains Region9
- Puerto Rico9
- San Juan Basin (N.M. and Colo.)9
- Beaver County8
- Iron County8
- Michigan8
- New Hampshire8
