Transcript for scene 5 of the video " Water Crisis: Healing the Colorado River - part 1" by Rolf Witzsche  

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Lake Powell is the second-largest reservoir on the river

Lake Powell is the second-largest reservoir on the river. It is formed by the Glen Canyon Dam upstream. The lake holds 30 billion cubic meters of water, and is presently drawn down to roughly half its volume.

The Glen Canyon Dam regulates the upstream collection that makes up 90% of the flow-volume of the Colorado River.

 

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Published by Cygni Communications Ltd. North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F. Witzsche