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Salinity in the Colorado River Basin
August 1, 1999
Hidden Passage II – Summer 1999
July 1, 1999
Endangered and Threatened Species in the Lower Colorado River Basin, Delta and Sea of Cortez
January 1, 1999
Sediment Hydrology on the Colorado River: The Impacts of Draining Lake Powell
December 7, 1998
Hidden Passage I – Fall 1998
October 1, 1998
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