John F. Ross is author of The Promise of the Grand Canyon: John Wesley Powell’s Perilous Journey and His Vision for the American West (Viking, 2018). He’s based in Bethesda, Maryland.
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The Map That Changed How We View The West
John Wesley Powell’s map of the American West sectioned off by watersheds offered a bold new vision of the region.
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Pioneering Western Water Management Strategies
The 19th-century geologist John Wesley Powell charted paths through the American West—and proposed ideas about developing the land with climate and ecology in mind.