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Subject
- National parks & reserves[remove]5
- Rock formations[remove]5
- Canyons3
- Cliffs2
- Deserts2
- Hills2
- Mesas2
- Petrified Forest National Park (Ariz.)2
- Petrified forests2
- Shrubs2
- Blue Mesa (Ariz.)1
- Boulders1
- Bryce Canyon (Utah)1
- Bryce Canyon National Park (Utah)1
- Buttes1
- Chiricahua National Monument (Ariz.)1
- Erosion1
- Firs1
- Grand Canyon (Ariz.)1
- Grand Canyon National Park (Ariz.)1