The Pikes Peak International Hill Climb also called The Race to the Clouds, is an annual car and motorcycle ascent to the summit of Pikes Peak in Colorado. It is taking place in the summer since 1916. The paved road is 12.42 miles (about 20 km) and is very curved—it has over 150 turns. The elevation gain is 4,720 ft (1,440 m). The climb starts at Mile 7 on Pikes Peak Highway and ends at an elevation of 14,110 ft (4,300 m) on the top of Pikes Peak.
The race features about 130 participants: cars, trucks, quads, and motorcycles. The first Pikes Peak International Hill Climb was organized by Spencer Penrose, and the first winner Rea Lentz covered the track in about 20 minutes. In 1971 the race was won by the first non-gasoline car, running on propane. The electric cars have been competing in the race since the 1980s. Spectators must observe the race only from designated viewing areas. Mind that it is a dangerous race, and all viewers attend at their own risk.