Petit Grepon

Petit Grepon is a semi-detached spire in Colorado's Rocky Mountain National Park. It is one of the "Cathedral Spires" which also includes: Sharkstooth, The Saber, and The Foil. The South Face route of Petit Grepon is described in the historic climbing text Fifty Classic Climbs of North America and considered a classic around the world.

Climate
According to the Köppen climate classification system, the spire is located in an alpine subarctic climate zone with cold, snowy winters, and cool to warm summers. Due to its altitude, it receives precipitation all year, as snow in winter, and as thunderstorms in summer, with a dry period in late spring.