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Subject
- Canyons20
- Cliffs20
- Erosion20
- Rock formations19
- Grand Canyon (Ariz.)18
- Grand Canyon National Park (Ariz.)18
- National parks & reserves18
- Buttes17
- Mesas16
- Vishnu Temple (Ariz.)5
- Granite Gorge (Ariz.)4
- Hopi Point (Ariz.)4
- Tree limbs4
- Trees4
- Wotans Throne (Ariz.)4
- Colorado River (Colo.-Mexico)3
- Powell Plateau (Ariz.)3
- Rivers3
- Shadows3
- Maricopa Point (Ariz.)2