Spatial Coverage
- Saint George Basin.1
- Salt River (River)1
- Salt River Indian Reservation (Ariz.)1
- Salt River Pima-Maricopa Indian Community of the Salt River Reservation, Arizona1
- Salt River Region1
- Salt River Region (Ariz.)1
- San Bernadino Valley (Ariz. and Mexico)1
- San Carlos Apache Tribe of the San Carlos Reservation, Arizona1
- San Carlos Indian Reservation (Ariz.)1
- San Francisco Volcanic Field1
- San Juan River Watershed1
- San Simon Region1
- Santa Catalina Mountains1
- Santa Catalina Mountains (Ariz.)1
- Sierra Ancha Wilderness Area1
- Sierra Ancha Wilderness Area (Ariz.)1
- Silver City Region1
- Socorro County1
- Sonora (Ariz.)1
- Sonora.1
