Crested Butte
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Crested Butte is a prominent mountain summit in the Elk Mountains range of the Rocky Mountains of North America. The Script error: No such module "convert". peak is in Gunnison National Forest, Script error: No such module "convert". northeast by east (bearing 59°) of the Town of Crested Butte in Gunnison County, Colorado, United States.[1][2][3] Ski lifts and runs of the Crested Butte Mountain Resort occupy the north side of the mountain.
Climate
The Köppen Climate Classification subtype for Crested Butte is "Dfc" which is continental subarctic. This climate type is dominated by the winter season with a long, bitterly cold period of minimal daylight hours, heavy snowfall and low humidity. The annual snowfall average is Script error: No such module "convert". with January recording the highest average snowfall at Script error: No such module "convert".. July is the warmest month with an average temperature of Script error: No such module "convert". while January is the coldest month with an average temperature of Script error: No such module "convert".. The average temperature for the year is Script error: No such module "convert"..[4] Script error: No such module "weather box".Script error: No such module "Check for unknown parameters".
Geology
Crested Butte is a laccolith rather than a true butte, formed when magma intruded into Mancos Shale approximately 30 million years ago. Subsequently the softer, overlying sedimentary rock has eroded away, exposing the more resistant igneous rock. The bulk of Crested Butte is composed of quartz monzonite porphyry and granodiorite porphyry. The lower slopes consist of Mancos Shale overlain with debris from the granitic slopes above. The Mancos Shale at the base of Crested Butte can be an unstable substrate for building and result in geologic hazards such as landslides and earthflows.[5][6]
Crested Butte is one of over a dozen laccoliths in the Elk and adjacent West Elk Mountains. The magma intrusions associated with these laccoliths resulted in contact metamorphism of the surrounding sedimentary rock and mineralization. The metamorphism also altered the bituminous coal present in the sedimentary rock into a higher quality coal, including anthracite, which was mined extensively in the Crested Butte area during the late 19th and early 20th centuries.[7]
Gallery
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Crested Butte viewed from Meridian Lake
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Crested Butte and the town of Crested Butte
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Geologic cross section of Crested Butte
See also
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- List of Colorado mountain ranges
- List of Colorado mountain summits
- List of Colorado county high points
References
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- ↑ Climate Summary for Crested Butte
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External links
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