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Subject
- Canyons[remove]227
- Shrubs[remove]227
- Trees147
- Mountains104
- Cliffs94
- Rocks89
- Rock formations57
- Rivers45
- National parks & reserves44
- Roads41
- Shadows35
- Hills29
- Grand Canyon (Ariz.)28
- Valleys23
- Feather River (Calif.)21
- Clouds20
- Tree limbs19
- Mesas18
- Grasses17
- Railroads17