John Wesley Powell

Born in 1834, he grew into a geologist, explorer, and ethnologist whose name is closely tied to the American West. After losing part of his right arm during the Civil War, he went on to lead major expeditions along the Green and Colorado rivers, including the famous 1869 journey through what is now the Grand Canyon.

Powell was more than an adventurer. He became an important scientific leader, serving as director of the U.S. Geological Survey and helping shape early research on the geology, geography, and Native peoples of the West. His work often joined firsthand travel with careful observation, which gives his books both the pace of an expedition story and the feel of serious discovery.

He died in 1902, but his influence has lasted far beyond his lifetime. Readers still return to his work for its vivid picture of western landscapes and for his forward-looking ideas about water, land, and settlement in dry country.