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Needle Mountains

Needle Mountains[1]
Needle Mountains seen from the San Juan Skyway.
Highest point
PeakWindom Peak
Elevation14,093 ft (4,296 m)
ListingMountain ranges of Colorado
Coordinates37°37′19″N 107°37′22″W / 37.62194°N 107.62278°W / 37.62194; -107.62278
Geography
Needle Mountains[1] is located in Colorado
Needle Mountains[1]
Needle Mountains[1]
CountryUnited States
StateColorado
Parent range
  • San Juan Mountains
  • Rocky Mountains

The Needle Mountains are a subrange of the San Juan Mountains of the Rocky Mountains located in the southwestern part of the U.S. State of Colorado. Much of the range is protected in the Weminuche Wilderness of the San Juan National Forest. The range is notable for having some of the most rugged mountains in the state, and includes many technical climbs and scrambles. A small but dramatic east–west subrange in the northern section is known as the Grenadier Range.

Geology

Unlike the rest of the San Juan Mountains, which are volcanic in origin, the Needle Mountains (along with the Grenadier Range) are a mass of uplifted Precambrian rocks. They consist chiefly of quartzite, granite, and amphibolite. The mountains are referred to as the Needle Mountains Uplift.[2][3]

Notable peaks

References

  1. ^ "Needle Mountains". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. ^ Barker, Fred (1969). Precambrian Geology of the Needle Mountains, Southwestern Colorado (PDF). Washington: United States Government Printing Office.
  3. ^ Barker, Fred (1969). "A brief geological history of the Precambrian rocks of the Needle Mountains, southwestern Colorado". In Shomaker, J.W. (ed.). San Juan, San Miguel, La Plata Region (New Mexico and Colorado). Fall field conference guidebook ; 19. New Mexico Geological Society. pp. 148–149.
Quelle: https://en.wikipedia.org/wiki/Needle_Mountains