Formation of Arches at Arches National Park
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Rainbow Bridge National Monument
Rainbow Bridge is the world's largest natural bridge. The bridge's predominant color is salmon-pink, with dark stains called desert varnish, caused by iron oxide (hematite).
Anza Borrego - Fonts Point
Four million years of geologic and paleontologic history are exhibited across a stark desert landscape, allowing views of sediments of the Pliocene and Pleistocene Epochs.
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The Desert Environment
The North American Deserts
Desert Geological Terms
DesertUSA is a comprehensive resource about the North American deserts and Southwest destinations. Learn about desert biomes while you discover how desert plants and animals learn to adapt to the harsh desert environment. Find travel information about national parks, state parks, BLM land, and Southwest cities and towns located in or near the desert regions of the United States. Access maps and information about the Sonoran Desert, Mojave Desert, Great Basin Desert, and Chihuahuan Desert.

