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Subject
- Mesas[remove]104
- Rock formations[remove]104
- Cliffs92
- Canyons57
- National parks & reserves50
- Buttes47
- Erosion43
- Grand Canyon (Ariz.)40
- Grand Canyon National Park (Ariz.)39
- Trees33
- Shrubs19
- Boundaries16
- Grasses15
- Monument Valley (Ariz. and Utah)14
- Valleys14
- Hills12
- Chelly, Canyon de (Ariz.)11
- Deserts11
- Blue Mesa (Ariz.)10
- Petrified Forest National Park (Ariz.)10