Just downstream from Glen Canyon lies Grand Canyon, a somewhat better known segment of Colorado River canyon. Grand Canyon is a profound cleft in Earth’s crust that almost always prompts questions about its creation; how long ago did it form and why …
Glen Canyon’s Prominent Rock Units: The Aeolian Sandstones Plus One
Throughout the middle and downstream sections of Lake Powell about a dozen rock units can be seen. All are sedimentary in origin. Of these, only about four are exceptionally prominent, and three of them are Aeolian (wind-deposited) sandstones. The …
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The Future of Lake Powell
Like all lakes, both natural and man-made, Lake Powell will eventually fall victim to sedimentation. The detritus, brought into the lake by the Colorado River and its tributaries, will gradually push the lake out of each of the lake’s side canyons …