The mountain, previously known as Black Dome for its rounded shape, was named after Elisha Mitchell, a professor at the University of North Carolina, who first explored the Black Mountain region in 1835, and determined that the height of the range exceeded by several hundred feet that of Mount Washington in New Hampshire, commonly thought at the time to be the highest point east of the Rocky Mountains. Mitchell fell to his death at nearby Mitchell Falls in 1857, having returned to verify his earlier measurements.