Spatial Coverage
- Bollinger County.1
- British Isles1
- Brooks Range1
- Brooks Range.1
- Buchanan County1
- Burley Region1
- Cache County1
- California.1
- Canada1
- Canada, Northern1
- Cantin Lake Region1
- Cape Girardeau County1
- Cape Girardeau County.1
- Carbon County1
- Carter County1
- Chaco Culture National Historical Park1
- Chaco Culture National Historical Park (N.M.)1
- Charles County1
- Chesapeake Bay (Md. and Va.)1
- Chugach National Forest1
