San
Luis
Peak
Franklin Rhoda and A.D. Wilson of the Hayden Survey made the first recorded ascent in 1874, part of the same summer's push that put them atop Uncompahgre, Handies and Sunshine peaks. The mountain's name almost certainly traces to the San Luis Valley to its east, itself named for San Luis, Colorado's oldest continuously occupied town: Hispano settlers from Taos, New Mexico, founded it in 1851 and dedicated its church on the feast day of Saint Louis — France's King Louis IX.
San Luis Peak sits apart from the rest of the range, well east of the other San Juan fourteeners and entirely surrounded by the La Garita Wilderness, first designated under the 1964 Wilderness Act and expanded in the decades after. The wilderness shares its name with the nearby La Garita Caldera, source of an eruption some 28 million years ago that ranks among the largest ever documented on Earth, burying thousands of square miles under the Fish Canyon Tuff.
SOURCE Wikipedia — San Luis PeakNo fee or permit; La Garita Wilderness, Gunnison NF. The remoteness is the crux — the dirt roads are fine dry but degrade badly in rain (14ers.com route page + recent trip reports, checked 2026-07).