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Subject
- Canyons[remove]272
- Rock formations[remove]272
- Cliffs168
- National parks & reserves138
- Trees108
- Mountains64
- Grand Canyon (Ariz.)62
- Mesas59
- Shrubs57
- Rivers54
- Erosion50
- Grand Canyon National Park (Ariz.)50
- Buttes40
- Bryce Canyon National Park (Utah)35
- Rocks31
- Scenic overlooks31
- Bryce Canyon (Utah : Valley)28
- Chelly, Canyon de (Ariz.)27
- Tree limbs26
- Valleys24