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Twin Sisters (Colorado)

Coordinates: 37°46′18″N 107°47′09″W / 37.7716250°N 107.7858110°W / 37.7716250; -107.7858110
From Wikipedia, the free encyclopedia
Twin Sisters
South aspect, from Engineer Mountain
Highest point
Elevation13,432 ft (4,094 m)[1]
Prominence1,112 ft (339 m)[1]
Parent peakRolling Mountain (13,693 ft)[2]
Isolation2.23 mi (3.59 km)[2]
Coordinates37°46′18″N 107°47′09″W / 37.7716250°N 107.7858110°W / 37.7716250; -107.7858110[3]
Geography
Twin Sisters is located in Colorado
Twin Sisters
Twin Sisters
Location in Colorado
Twin Sisters is located in the United States
Twin Sisters
Twin Sisters
Twin Sisters (the United States)
LocationSan Juan County, Colorado, US
Parent rangeRocky Mountains
San Juan Mountains
Topo mapUSGS Ophir
Climbing
Easiest routeclass 2[2]

Twin Sisters is a 13,432-foot-elevation (4,094-meter) mountain summit located in San Juan County, Colorado, United States.[3] The lower west summit has an elevation of 13,374 feet (4,076 meters) and 0.43 mile separates the pair.[4] Twin Sisters is part of the San Juan Mountains range which is a subset of the Rocky Mountains, and is west of the Continental Divide. It is situated 7.5 miles southwest of the community of Silverton, on land managed by San Juan National Forest. It is set 5.5 miles north of Engineer Mountain, and 2.2 miles east of Rolling Mountain, the nearest higher neighbor.[1] Other neighbors include Snowdon Peak seven miles to the southeast, and Golden Horn, 3.5 miles to the northwest. Topographic relief is significant as the north aspect rises 3,000 feet (910 meters) above South Fork Mineral Creek in approximately 1.5 mile. The mountain's name, which has been officially adopted by the United States Board on Geographic Names, was in use in 1906 when Henry Gannett published it in A Gazetteer of Colorado.[3][5]

Climate

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According to the Köppen climate classification system, Twin Sisters 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. Precipitation runoff from the mountain drains into tributaries of the Animas River.

See also

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References

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  1. ^ a b c "Twin Sisters, Colorado". Peakbagger.com.
  2. ^ a b c "Twin Sisters, East - 13,432' CO". listsofjohn.com. Retrieved 2021-07-19.
  3. ^ a b c "Twin Sisters". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2021-07-19.
  4. ^ "Twin Sisters West, Colorado". Peakbagger.com.
  5. ^ Henry Gannett, Gazetteer of Colorado, 1906, US Government Printing Office, page 171.
  6. ^ Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN 1027-5606.
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