Spatial Coverage
- Chippewa National Forest (Minn.)1
- Chippewa National Forest.1
- Chugach National Forest (Alaska)1
- Clear Creek County1
- Clearwater National Forest (Idaho)1
- Coast Ranges1
- Colorado (Staat)1
- Colorado River Indian Reservation (Ariz. and Calif.)1
- Colorado River Indian Tribes of the Colorado River Indian Reservation, Arizona and California1
- Comanche National Grassland (Colo.)1
- Connecticut.1
- Copper River Watershed (Alaska)1
- Dade County1
- Davis Strait1
- Davis Strait.1
- Death Valley National Park (Calif. and Nev.)1
- Delaware River Region (N.Y.-Del. and N.J.)1
- District of Mackenzie1
- Dominican Republic1
- Edwards Aquifer (Tex.)1
