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The Gran Desierto sand sheets and dunes are located atop deltaic deposits of the Pleistocene Colorado River. The lower Colorado River was captured by the Gulf of California 1.2 million years before present. [9] This event places an upper bound on the age of the Gran Desierto with the Colorado's major clastic sediment sources.
El Pinacate and Gran Desierto de Altar Biosphere Reserve (Spanish: Reserva de la Biosfera El Pinacate y Gran Desierto de Altar) is a biosphere reserve and UNESCO World Heritage Site [1] managed by the federal government of Mexico, specifically by Secretariat of the Environment and Natural Resources, in collaboration with the state governments of Sonora and the Tohono O'odham.
The Pinacate Peaks (Sierra Pinacate, O'odham: Cuk Doʼag) 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 vast sand dune field of the Gran Desierto de Altar, at the desert's southeast. [1]
Reserva de la Biosfera el Pinacate y Gran Desierto de Altar East Bank–Colorado Riv. The western route parallelling the Colorado River, covers more plains, of the Colorado Desert / Mojave Desert , rising to, and down from various mountain passes , (for example south of Needles, California (the Sacramento Mountains (California) ), or ...
Alto Golfo de California Biosphere Reserve is a UNESCO Biosphere Reserve located in the state of Sonora in extreme northwestern Mexico. Thee 1,652,110 hectares (6,378.8 sq mi) reserve comprises the El Pinacate y Gran Desierto reserve and the Bahia Adair on the Gulf of California border. Geological volcanic formations with craters, dunes, oasis ...
Within the southern Sonoran Desert in Mexico is found the Gran Desierto de Altar, with the El Pinacate y Gran Desierto de Altar Biosphere Reserve, encompassing 2,000 square kilometres (770 sq mi) of desert and mountainous regions. [7] The biosphere reserve includes the only active erg dune region in North America.
Gran Desierto de Altar, Sonora, Mexico; Baja California desert, State of Baja California, Mexico Vizcaíno Desert, central State of Baja California, Mexico; Chihuahuan Desert. Trans-Pecos Desert, west Texas; White Sands, unusual gypsum dune field in New Mexico
The Algodones Dunes. The Colorado Desert is a subregion of the larger Sonoran Desert, [1] covering about 7 million acres (2.8 million ha; 28,000 km 2). [2] The desert occupies Imperial County, parts of San Diego and Riverside counties, and a small part of San Bernardino County in California, United States, [3] as well as the northern part of Mexicali Municipality in Baja California, Mexico.