Organ Pipe Cactus NM

Located in the Sonoran Desert of the Arizona Southwest, Organ Pipe Cactus National Monument brings together mountains (Bates Mountains, Cipriano Hills, Puerto Blanco Mountains, Sonoyta Mountains) and plains (La Abra Plain, Valley of the Aho, and Sonoyta Valley) at the Mexican Border. In 1976, the United Nations designated the park an International Biosphere Reserve. We […]

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