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John Wesley Powell, the second Director of the U.S. Geological Survey from 1881 to 1894 and explorer of the Colorado River and Grand Canyon, recognized that water availability was a ....
John Wesley Powell, the second Director of the U.S. Geological Survey (USGS) from 1881 to 1894 and explorer of the Colorado River and Grand Canyon, recognized that water availability was a significant challenge in the western United States. During Powell’s USGS tenure, systematic inventorying of streams and their flows in the USA began in earnest. ....