His expedition was the first to traverse the canyon floor and to map the canyon.
Because it was one of the last areas in the US that remained unmapped.
Because it was an exploration that had never been accomplished.
John Wesley Powell, named the Grand Canyon.
It was one of the few unknowns and unmapped areas in the United States.
John Wesley Powell
John Wesley Powell
John Wesley Powell.
John Wesley Powell
John Wesley Powell, named the Grand Canyon.
John Wesley Powell was a soldier, geologist, and explorer, who was best known for his exploration and naming of the Grand Canyon.
he found the grand canyon
Scientific curiosity.
John Wesley Powell.
Powell did not discover the Grand Canyon, but he led the first known passage through the Canyon in 1869. It was first seen by Europeans in 1540 but had been known by the Native Americans for centuries.