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Subject
- Deserts[remove]10
- Mountains6
- Shrubs6
- Hills3
- Cactus2
- Clouds2
- National parks & reserves2
- Painted Desert (Ariz.)2
- Petrified Forest National Park (Ariz.)2
- Rock formations2
- Saguaro National Park (Ariz.)2
- Valleys2
- Air travel1
- Buttes1
- Cliffs1
- Croplands1
- Death Valley (Calif. and Nev.)1
- Erosion1
- Glacier Lodge (Calif.)1
- Middle Palisade Glacier (Calif.)1