Once upon a time, there was a small river flowing across Northern Arizona.  Over millions of years, the rainfall near its headwaters eroded a channel that connected it to a lake on the eastern side of the Kaibab, forming the Colorado River.  The additional flow from the lake gave the river enough power to enlarge the river’s valley, creating the Grand Canyon.  The Colorado River has now been tamed by a series of dams, but it continues to slowly erode the solid rock of its bed – a proces...


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