Spatial Coverage
- United States6
- Grand Canyon National Park (Ariz.)5
- Grand Canyon National Park.5
- Pinal County (Ariz.)5
- Santa Cruz County (Ariz.)5
- Cochise County.4
- Coconino National Forest (Ariz.)4
- Greenlee County (Ariz.)4
- Hualapai Indian Reservation4
- Kaibab National Forest (Ariz.)4
- Pima County (Ariz.)4
- Tonto National Forest (Ariz.)4
- Arizona Strip3
- Arizona Strip (Ariz.)3
- Chiricahua National Monument (Ariz.)3
- Colorado3
- Colorado River (Colo.-Mexico)3
- Coronado National Forest (Ariz. and N.M.)3
- EĢtats-Unis3
- Grand Canyon3
