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Colorado Plateau's dramatic canyons: How rivers' ancient pauses and rapid cuts shaped themThe researchers found that in the Moab region of the central Colorado Plateau, river incision paused from 1.8 million years ago to about 350,000 years ago. This pause was followed by a period of ...
By the time the river courses into Arizona and roars into the plateau country's most dazzling feature, the Grand Canyon, it is plowing a furrow more than a mile deep. Pretty impressive digging ...
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