The Last Uncharted Wilderness in the U.S. Lower Forty

This country in Central Utah was the last uncharted territory in the United States. In 1871, Major John Wesley Powell on his Second Expedition sent his brother-in-law, Almon H. Thompson, to survey the land around the Colorado River. Thompson and others climbed to the top of this mountain and over the next four years, the exploration of this area was completed. The top of this mountain on the left is now called "Powell Point" in honor of Major Powell.