Granite Peak is one of the most difficult U.S. state highpoint ascents, due to technical climbing, poor weather, and route finding. Granite Peak’s first ascent was made by Elers Koch, James C. Whitham and R.T. Ferguson on August 29, 1923 after several failed attempts by others. It was the last of the state highpoints to be climbed. Today, climbers typically spend two or three days ascending the peak, stopping over on the Froze-to-Death Plateau, although some climbers choose to ascend the peak in a single day. Another route that has gained popularity in recent years is the Southwest Couloir route, a non-technical route from the south starting near Cooke City; climbers generally take two days to complete it.