Mount Elbert

The summit of Mount Elbert at 14,440 feet elevation is the highest summit of the Rocky Mountains of North America, the highest point in the U.S. State of Colorado, and the second-highest summit in the contiguous United States after Mount Whitney, which is slightly taller. The ultra-prominent fourteener is the highest peak in the Sawatch Range, as well as the highest point in the entire Mississippi River drainage basin.

Source: Wikipedia