Pilot Knob is a 13,738-foot-elevation (4,187-meter) mountain summit located on the shared boundary of San Juan County with San Miguel County, in southwest Colorado, United States.

It ranks as the 132nd-highest peak in Colorado,[2] and topographic relief is significant as the west aspect rises 4,000 feet (1,200 meters) above Trout Lake in three miles.

[3][4] The peak is considered one of the most difficult to climb in Colorado because of its poor quality volcanic rock.

[5] According to the Köppen climate classification system, Pilot Knob is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers.

[6] 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.