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ColoradoRiver

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U.S. Geological Survey scientists estimate that the adult population of humpback chub (Gila cypha) in the Grand Canyon increased 50 percent between 2001 and 2008....
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Endangered Humpback Chub
U.S. Geological Survey scientists estimate that the adult population of humpback chub (Gila cypha) in the Grand Canyon increased 50 percent between 2001 and 2008....
Location: AZ, USA
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Photo of River Mile 3 taken before the 2008 Glen Canyon experiment....
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River Mile 3: Before High Flow Experiment
Photo of River Mile 3 taken before the 2008 Glen Canyon experiment....
Location: Page, AZ, USA
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Photo of River Mile 3 taken after the 2008 Glen Canyon high flow experiment....
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River Mile 3: After High Flow Experiment
Photo of River Mile 3 taken after the 2008 Glen Canyon high flow experiment....
Location: Page, AZ, USA
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Photo of River Mile 45 taken before the 2008 Glen Canyon high flow experiment....
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River Mile 45: Before High Flow Experiment
Photo of River Mile 45 taken before the 2008 Glen Canyon high flow experiment....
Location: Page, AZ, USA
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Photo of River Mile 45 taken after the 2008 Glen Canyon high flow experiment....
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River Mile 45: After High Flow Experiment
Photo of River Mile 45 taken after the 2008 Glen Canyon high flow experiment....
Location: Page, AZ, USA
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