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Subject
- Canyons[remove]29
- Rock formations[remove]29
- Cliffs28
- National parks & reserves24
- Black Canyon of the Gunnison (Colo.)23
- Black Canyon of the Gunnison National Park (Colo.)23
- Rivers16
- Mountains12
- Trees8
- Rocks3
- Colorado National Monument (Colo.)2
- Grasses2
- Mesas2
- Pulpit Rock (Colo.)2
- Rapids2
- Roads2
- Shadows2
- Shrubs2
- Buttes1
- Clear Creek (Clear Creek County, Colo.)1