The Pikes Peak Marathon and Ascent is a racing event that begins at the base of Pikes Peak, in Manitou Springs, Colorado, and climbs over 7,815 feet (2382 m) to the top of the 14,115 foot (4302 m) peak. Since 1956, the event takes place each year in late summer, with the Ascent taking place on Saturday (slightly longer than a half-marathon, at 13.3 miles), and the round-trip marathon on Sunday.

https://pikespeakmarathon.org/