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underarockphoto: Crested saguaro (Carnegiea gigantea), Martinez Hill, Tucson, Pima County, Arizona
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underarockphoto: Crested saguaro (Carnegiea gigantea), Martinez Hill, Tucson, Pima County, Arizona
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underarockphoto: Fishhook Barrel, King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, fishhook barrel, King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Hohokam Pictographs, saguaro cactus (Carnegiea gigantea), King Canyon, Tucson Mountain Section, Saguaro National Park, Pima County, Arizona
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underarockphoto: Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro Ribs, Ajo Valley, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro Ribs, Ajo Valley, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro Ribs, Ajo Valley, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Organ pipe cactus, Senita Basin, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro, Senita Basin, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro, Senita Basin, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro, Senita Basin, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Organ pipe cactus, Senita Basin, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Alan Cressler, 45ft tall saguaro, Senita Basin Drive, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Saguaro ribs, South Puerto Blanco Drive, Organ Pipe Cactus National Monument, Pima County, Arizona
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underarockphoto: Owl Head Butte Cave, Owl Head Buttes, Pimal County, Arizona
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underarockphoto: Owl Head Butte Cave, Owl Head Buttes, Pimal County, Arizona
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underarockphoto: Owl Head Butte Cave, Owl Head Buttes, Pimal County, Arizona
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underarockphoto: Owl Head Butte Cave, Owl Head Buttes, Pimal County, Arizona