The Online Encyclopedia of Wyoming History

u.s. geological survey

u.s. geological survey

John Wesley Powell: Explorer, Thinker, Scientist and Bureaucrat

In 1869 and 1871, John Wesley Powell led two expeditions from Wyoming Territory down the Green and Colorado rivers. These and other explorations brought him to a profound understanding of how the West’s aridity limits its economic prospects. He directed the U.S. Geological Survey from 1881-1894, and his ideas still affect land and water policy today. 

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