John Wesley Powell

John Wesley Powell (1834-1902) was an American geologist and explorer best known for his groundbreaking explorations of the Colorado River and the Grand Canyon. He famously led the 1869 expedition that successfully navigated the Colorado River, providing valuable scientific data about the geology and ecology of the region. Powell was also an advocate for conservation and the responsible management of natural resources. He later served as the director of the U.S. Geological Survey and played a key role in the development of the National Park System, emphasizing the importance of preserving America’s natural landscapes for future generations.