Spatial Coverage
- Pecos River Valley.1
- Philippines1
- Powder River Basin (Wyo. and Mont.)1
- Quetico Provincial Park1
- Quetico Provincial Park (Ont.)1
- Rhodesia and Nyasaland1
- Sierra County1
- Sierra Leone1
- South America1
- Southeast Asia1
- Soviet Union1
- Soviet Union.1
- Sudan1
- Tanzania1
- Tetlin National Wildlife Refuge1
- Tetlin National Wildlife Refuge (Alaska)1
- Togo1
- U.S.1
- Uinta Basin (Utah and Colo.)1
- Uinta Basin.1
