The critical event was the completion of Glen Canyon Dam in 1963 near Page, Arizona. Its massive reservoir, Lake Powell, absorbed years of the river's flow, and from around 1960 to 1980, the Colorado rarely reached the Gulf. www.worldatlas.com/rivers/the-y... When did the Colorado River stop reaching the sea? Around 1960, when Glen Canyon Dam choked off its flow, with only rare returns since, incl
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The critical event was the completion of Glen Canyon Dam in 1963 near Page, Arizona. Its massive reservoir, Lake Powell, absorbed years of the river's flow, and from around 1960 to 1980, the Colorado rarely reached the Gulf. www.worldatlas.com/rivers/the-y... When did the Colorado River stop reaching the sea? Around 1960, when Glen Canyon Dam choked off its flow, with only rare returns since, incl