Gran Desierto de Altar
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The Gran Desierto de Altar is one of the major sub-ecoregions of the Sonoran Desert, located in the State of Sonora in northwest Mexico. It includes the only active erg dune region in North America. T
Sand dunes at El Pinacate y Gran Desierto de Altar Biosphere Reserve, northwestern Sonora, México
Pinacate Peaks
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The Pinacate Peaks are a group of volcanic peaks and cinder cones located mostly in the Mexican state of Sonora along the international border adjacent to the U.S. state of Arizona, surrounded by the
Gran Desierto de Altar
…north to south. It constitutes the largest continuous wilderness area within the Sonoran Desert. The eastern portion of the area contains the volcanic Pinacate Peaks region; together with the western portion, the area forms the El Pinacate y Gran Desierto de Altar Biosphere Reserve and a UNESCO World Heritage Site…
Crater Elegante with the Pinacate Peaks in the background
Pinacate volcanics with teddy-bear chollas, ocotillos, young saguaros, and a paloverde tree
Bursera microphylla, Elephant Tree, photographed at Cerro Colorado in Baja California, Mexico.