Granite Rapid - Grand Canyon National Park, AZ - Signs of History on Waymarking.com

The plaque says, "Far below in the Colorado River you can see Granite Rapid. Like most Grand Canyon rapids, Granite Rapid forms where a side stream flows into the river. At Granite Rapid, Monument Creek enters the Colorado River from the south.

During floods, side stream deposits boulders, rocks and sand into the Colorado River. This debris constricts the channel, forcing the river to gain speed and power. The faster river crashes over debris-strewn riverbed, forming powerful rapids."

Group that erected the marker: NPS Address of where the marker is located. Approximate if necessary: Grand Canyon National Park, AZ URL of a web site with more information about the history mentioned on the sign: Not listed

Visit Instructions:
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Date Logged Log   05/08/2016 bluesnote visited it