Before and After Images: Grand Canyon Flood

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Credit: U.S. Geological Survey.
In late November, an artificial flood raced through the iconic Grand Canyon, temporarily transforming the clear blue water back to its historic copper…Read More »

color. The first of several planned floods, the Department of the Interior ordered the deluge, released in a gush from the Glen Canyon Dam starting Nov. 19, to rebuild habitat along the Colorado River.

Since the floodwaters retreated, sandy beaches have transformed more than 200 miles (320 kilometers) downstream of Glen Canyon Dam, an early measure of success. The massive floods are designed to help create beaches and back eddies for campers, rafters and native fish.

The U.S. Geological Survey recorded the canyon's transformation with remote cameras. The images shown here illustrate the variability of the flood's effects, from adding massive piles of sand to eating away at bushes and rocks.   Less «
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