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Subject
- Canyons[remove]9
- Rock formations[remove]9
- Cliffs6
- National parks & reserves4
- Grand Canyon (Ariz.)3
- Mesas3
- Trees3
- Buttes2
- Erosion2
- Grand Canyon National Park (Ariz.)2
- Powell Plateau (Ariz.)2
- Shrubs2
- Bandelier National Monument (N.M.)1
- Black Canyon of the Gunnison (Colo.)1
- Black Canyon of the Gunnison National Park (Colo.)1
- Cape Royal (Ariz.)1
- Channels1
- Chelly, Canyon de (Ariz.)1
- Clouds1
- Death Valley (Calif. and Nev.)1