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Subject
- Rock formations[remove]72
- Rocks[remove]72
- Mountains36
- Shrubs33
- Cliffs32
- Trees28
- Grasses27
- National parks & reserves22
- Roads17
- Boulders16
- Hills14
- Canyons13
- Santa Catalina Mountains (Ariz.)13
- Deserts12
- Petrified Forest National Park (Ariz.)11
- Erosion9
- Petrified forests9
- Automobiles8
- Cactus8
- Chiricahua National Monument (Ariz.)8