Pikes Peak International Hill Climb
The Pikes Peak International Hill Climb (PPIHC), also known as The Race to the Clouds, is an annual automobile hillclimb to the summit of Pikes Peak in the U.S. state of Colorado. The track measures 12.42 miles (19.99 km) and has over 156 turns, climbing 4,720 ft (1,440 m) from the start at mile 7 on Pikes Peak Highway, to the finish at 14,115 ft (4,302 m), on grades averaging 7.2%.
Source: Wikipedia — Pikes Peak International Hill Climb (CC BY-SA 4.0)