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Subject
- Cliffs[remove]81
- Mountains[remove]81
- Rock formations49
- Trees48
- Shrubs40
- Canyons30
- Hills24
- Rocks22
- Roads14
- Cactus13
- Grasses13
- Oak Creek Canyon (Ariz.)12
- Santa Catalina Mountains (Ariz.)12
- Saguaro11
- Erosion10
- Sabino Canyon (Ariz.)10
- Mesas8
- Buttes7
- Clouds7
- Utility poles6