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Subject
- Canyons[remove]659
- Trees334
- Cliffs302
- Rock formations272
- Mountains245
- Shrubs227
- National parks & reserves210
- Rivers161
- Rocks150
- Grand Canyon (Ariz.)116
- Roads88
- Valleys80
- Shadows79
- Clouds77
- Mesas77
- Grand Canyon National Park (Ariz.)69
- Hills69
- Erosion61
- Tree limbs60
- Buttes54