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Earth Notes: The Returning Rapids Of Lower Cataract Canyon

Earth Notes: The Returning Rapids Of Lower Cataract Canyon
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United statesCataract canyonMike dehoff dee hoffPeter lefebvreMichaela sallueSustainable communities program at northern arizona universityColorado riverGlen canyonLake powellReturning rapids projectLake powell formationEarth noteSustainable communities programNorthern arizona