Anthracite Range

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Anthracite Range
Anthracite Range, West Elk Mountains, Gunnison County, Colorado, USA 02.jpg
Anthracite Range
Highest point
PeakAnthracite Range High Point
Elevation 12,394 ft (3,778 m) [1] [2]
Prominence 2,105 ft (642 m) [2]
Coordinates 38°48′52″N107°08′40″W / 38.814526°N 107.144505°W / 38.814526; -107.144505 Coordinates: 38°48′52″N107°08′40″W / 38.814526°N 107.144505°W / 38.814526; -107.144505 [2]
Geography
USA Colorado relief location map.svg
Red triangle with thick white border.svg
Anthracite Range
Country United States
State Colorado
County Gunnison
Parent range West Elk Mountains, Rocky Mountains

The Anthracite Range is a mountain range in the West Elk Mountains, a sub-range of the Rocky Mountains of North America. The range is located in Gunnison County of western Colorado and lies within the West Elk Wilderness of the Gunnison National Forest. The Anthracite Range is one of several prominent laccoliths found in the West Elk Mountains. [3] [4]

Contents

Geology

The Anthracite Range is a laccolith, formed when magma intruded into sedimentary strata of the Mesaverde Formation approximately 30 million years ago. Subsequent erosion has removed the softer, overlying sedimentary rock thereby exposing the more resistant igneous rock that characterizes the mountain today. The range is composed of quartz monzonite porphyry and granodiorite porphyry. The Anthracite Range was glaciated, and the most prominent glacial cirques are located on the north and east sides of the range. [4] [5]

The range is named after anthracite, a high-quality, metamorphized coal found in the sedimentary rock of the Mesaverde Formation at the base of this and nearby laccoliths. [4]

Summits

The Anthracite Range is an east-west oriented ridge less than 5 miles (8 km) in length, but there are several summits of interest to mountaineers and peakbaggers. From west to east, these summits include: the Anthracite Range High Point (elevation 12,385 ft (3,775 m)), prominence 2,125 ft (648 m)); Unnamed Peak 12,300 (elevation 12,300 ft (3,700 m)); Ohio Peak (elevation 12,271 ft (3,740 m)); and Unnamed Peak 11,555 (elevation 11,555 ft (3,522 m)). These summits are most often accessed from Ohio Pass where a climber's trail enters the wilderness area, traverses southwest across talus slopes then up through a cirque to the ridge just west of Unnamed Peak 11,555. From there, the summits are reached by hiking along the ridge. [6] [7]

See also

List of the most prominent summits of Colorado

Related Research Articles

Snowmass Mountain

Snowmass Mountain is a fourteen thousand foot tall mountain in the U.S. state of Colorado, and is the thirty-fourth highest mountain peak in the state. Located in the Elk Mountains, within the Maroon Bells-Snowmass Wilderness of the White River National Forest, it lies along the border between the Pitkin and Gunnison counties, west of Aspen and southwest of the town of Snowmass Village.

Mount Lamborn

Mount Lamborn is a mountain summit in the West Elk Mountains range of the Rocky Mountains of North America. The 11,402-foot (3,475 m) peak is located in Gunnison National Forest, 5.9 miles (9.5 km) southeast by south of the Town of Paonia in Delta County, Colorado, United States. The summit of Mount Lamborn is the highest point in Delta County. Together with nearby Landsend Peak to the southwest, it lies at the western edge of the West Elks, rising dramatically nearly 6,000 ft above the valley of the North Fork Gunnison River to the west.

West Elk Mountains

The West Elk Mountains are a high mountain range in the west-central part of the U.S. state of Colorado. They lie primarily within the Gunnison National Forest, and part of the range is protected as the West Elk Wilderness. The range is primarily located in Gunnison County, with small parts in eastern Delta and Montrose counties.

Crested Butte

Crested Butte is a prominent mountain summit in the Elk Mountains range of the Rocky Mountains of North America. The 12,168-foot (3,709 m) peak is located in Gunnison National Forest, 2.1 miles (3.4 km) northeast by east of the Town of Crested Butte in Gunnison County, Colorado, United States. Ski lifts and runs of the Crested Butte Mountain Resort occupy the north side of the mountain.

Mendicant Ridge

Mendicant Ridge is a massive 12 miles (19 km) long high mountain located about 9 miles (14 km) east-southeast of Crawford, Colorado in the Gunnison National Forest, Gunnison County, Colorado, United States. The ridge marks the western edge of the West Elk Mountains range of the Rocky Mountains of North America and dominates the eastern skyline of the adjacent valley with about 5,000 ft (1,500 m) of vertical relief above Crawford State Park. Trending roughly northeast, Mendicant Ridge has four distinct summits that are often confused in the reference literature. From Castle Rock summit at 11,205 ft (3,415 m) on the southwest, the ridge rises to Mendicant Ridge South summit at 11,425 ft (3,482 m), then to a higher central summit at 11,603 ft (3,537 m), and finally to the Mendicant Ridge High Point located on the northeast end at an elevation of 11,841 ft (3,609 m).

Needle Rock Natural Area

Needle Rock Natural Area is located at the western edge of the West Elk Mountains of Colorado. The surrounding terrain is characterized by laccolithic mountains flanked by precipitous cliffs, extensive talus aprons, forested mesas, canyons, and spacious, well-watered intermontane basins. Needle Rock is an intrusive plug of monzonite porphyry cropping out 3.5 miles (5.6 km) east-northeast of the Town of Crawford in Delta County, Colorado, United States. At an elevation of 7,797 feet (2,377 m), the towering rock spire stands 800 feet (240 m) tall above the floor of the Smith Fork of the Gunnison River valley. The massive rock feature originated in the Oligocene geological epoch when magma intruded between existing sedimentary rocks as the crown of a buried laccolith or possibly the underlying conduit of a laccolith. Subsequent erosion has exposed the prominent rock formation seen in the natural area today.

Tomichi Dome

Tomichi Dome rises north of U.S. Highway 50 west of Hot Springs Creek and south of Waunita Hot Springs Reservoir in the southeast quarter of Gunnison County, Colorado. It is situated within the Gunnison National Forest.

Mount Gunnison

Mount Gunnison is a prominent mountain summit in the West Elk Mountains range of the Rocky Mountains of North America. The 12,725-foot (3,879 m) peak is located in the West Elk Wilderness of Gunnison National Forest, 22.2 miles (35.7 km) west by south of the Town of Crested Butte in Gunnison County, Colorado, United States. The mountain is named in honor of John Williams Gunnison who explored the area.

West Elk Peak

West Elk Peak, elevation 13,042 ft (3,975 m), is the highest summit in the West Elk Mountains of Gunnison County, Colorado. The mountain is in the West Elk Wilderness, northwest of Gunnison. The terrain consists mostly of volcanic breccia, known in this area as West Elk Breccia, dated at 35 to 30 million years old.

East Beckwith Mountain

East Beckwith Mountain is a prominent mountain summit in the West Elk Mountains range of the Rocky Mountains of North America. The 12,441-foot (3,792 m) peak is located in the West Elk Wilderness of Gunnison National Forest, 13.4 miles (21.5 km) west by south of the Town of Crested Butte in Gunnison County, Colorado, United States.

Whetstone Mountain

Whetstone Mountain, elevation 12,527 ft (3,818 m), is a summit in the Gunnison National Forest of western Colorado. The mountain is located 3 mi (4.8 km) south of Crested Butte in Gunnison County. Whetstone Mountain is one of several prominent laccoliths found in the West Elk Mountains.

Mount Guero

Mount Guero is a prominent mountain summit in the West Elk Mountains range of the Rocky Mountains of North America. The 12,058-foot (3,675 m) peak is located in the West Elk Wilderness of the Gunnison National Forest, 13 miles (21 km) east of Crawford, Colorado in Delta County and 24.3 miles (39.1 km) west-southwest of the Town of Crested Butte in Gunnison County, Colorado, United States.

Carbon Peak

Carbon Peak, elevation 12,088 ft (3,684 m), is a summit in the West Elk Mountains of Colorado. The peak is southwest of Crested Butte in the Gunnison National Forest. Carbon peak is a laccolith formed during the mid-Tertiary period, and is part of the “laccolith triangle” as described by the Colorado Geological Survey.

Mount Emmons (Colorado)

Mount Emmons is a mountain summit in the Elk Mountains range of the Rocky Mountains in north-central Gunnison County, Colorado, United States.

Landsend Peak Mountain in Colorado, US

Landsend Peak is a prominent wedge-shaped mountain located in the West Elk Mountains range northeast of Crawford, Colorado. The summit of Landsend Peak has an elevation of 10,806 ft (3,294 m) rising dramatically about 4,000 ft (1,200 m) above the valley below. Together with nearby Mount Lamborn to the northeast, it delineates the western edge of the West Elk Mountains, and the two massifs top out about 1 mile (1.6 km) higher than the adjacent North Fork Gunnison River. Both peaks lie within the Gunnison National Forest near the physiographic boundary of the Rocky Mountains and the Colorado Plateau provinces. Geologically, Landsend Peak and Mount Lamborn are exposed igneous intrusions that geologists call laccoliths.

West Beckwith Mountain Mountain in Colorado, USA

West Beckwith Mountain is a prominent mountain summit in the West Elk Mountains range of the Rocky Mountains of North America. The 12,185-foot (3,714 m) peak is located in the West Elk Wilderness of Gunnison National Forest, about 16.5 miles (26.5 km) southwest of Crested Butte in Gunnison County, Colorado, United States.

Youngs Peak Mountain in Colorado, USA

Youngs Peak is a small mountain located on the western side of the West Elk Mountains just east of and overlooking Crawford, Colorado. It has an elevation of 7,424 ft (2,263 m) with about 600 ft (180 m) of vertical relief above the town below. Although much of the mountain is covered with sedimentary rocks, Saddle Mountain is an exposed igneous intrusion that geologists call a laccolith.

References

  1. "Anthracite". NGS data sheet. U.S. National Geodetic Survey . Retrieved 22 Nov 2020.
  2. 1 2 3 "Anthracite Range, Colorado". Peakbagger.com. Retrieved 22 Nov 2020.
  3. "Anthracite Range". Geographic Names Information System . United States Geological Survey . Retrieved 22 Nov 2020.
  4. 1 2 3 Prather, Thomas (1999). Geology of the Gunnison Country (2nd ed.). Gunnison, Colorado: B&B Printers. LCCN   82-177244.
  5. Gaskill, D. L.; DeLong, J. E.; Cochran, D. M. (1987). Geologic map of the Mount Axtell quadrangle, Gunnison County, Colorado. Reston, Virginia: U.S. Geological Survey. Retrieved 22 November 2020.
  6. "List of Peaks". Lists of John. Retrieved 16 December 2020. The following Anthracite Range summits are included: Anthracite Range High Point, Unnamed Peak 12,300; Ohio Peak; and Unnamed Peak 11,555.
  7. Tarr, Mary Anne (2007). Timber, Talus & Tundra: Hiking Trails & Mountain Peaks of the Gunnison Basin...and a bit beyond (2nd ed.). Gunnison, Colorado: Uncompahgre Books. ISBN   978-0-9650842-1-5.