Organ Pipe Cactus National Monument
The largest habitat north of the border for organ pipe cacti (the beautiful multiarmed cousins of the saguaro) is off the beaten path unless you’re driving to Puerto Penasco, Mexico. But it’s a worthwhile destination to view large groves of this desert flora, fairly common in Mexico but rare in the United States.
Recommended Fodor's Video
Elsewhere in Southwest Arizona
Yuma >
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Ajo >
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Sells >
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Buenos Aires National Wildlife Refuge >
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Imperial National Wildlife Refuge >
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Kitt Peak National Observatory >
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