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A red rock cliff reflected in the rising waters of the Colorado River after the four jet tubes were opened at the Glen Canyon Dam in Arizona, to increase the flow on the river on Wednesday, March 5, 2008. The Glen Canyon Dam's jet tubes were opened to conduct a high-flow experiment. The experiment will boost the flow of the Colorado river to 41,000 cfs in the Grand Canyon. (CHRIS SCHNEIDER/ROCKY MOUNTAIN NEWS) **

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