Graham Peak (Colorado)

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Graham Peak
USA Colorado location map.svg
Red triangle with thick white border.svg
Graham Peak
Highest point
Elevation 12,536 ft (3,821 m) [1] [2]
Prominence 2,551 ft (778 m) [3]
Isolation 8.64 mi (13.90 km) [3]
Listing Colorado prominent summits
Coordinates 37°29′50″N107°22′34″W / 37.4972364°N 107.376119°W / 37.4972364; -107.376119 Coordinates: 37°29′50″N107°22′34″W / 37.4972364°N 107.376119°W / 37.4972364; -107.376119 [1]
Geography
Location Hinsdale County, Colorado, U.S. [4]
Parent range San Juan Mountains [3]
Topo map USGS 7.5' topographic map
Granite Peak, Colorado [1]

Graham Peak is a prominent mountain summit in the San Juan Mountains , a range of the Rocky Mountains System in southwestern Colorado

In topography, prominence measures the height of a mountain or hill's summit relative to the lowest contour line encircling it but containing no higher summit within it. It is a measure of the independence of a summit. A peak's key col is a unique point on this contour line and the parent peak is some higher mountain, selected according to various objective criteria.

Mountain A large landform that rises fairly steeply above the surrounding land over a limited area

A mountain is a large landform that rises above the surrounding land in a limited area, usually in the form of a peak. A mountain is generally steeper than a hill. Mountains are formed through tectonic forces or volcanism. These forces can locally raise the surface of the earth. Mountains erode slowly through the action of rivers, weather conditions, and glaciers. A few mountains are isolated summits, but most occur in huge mountain ranges.

Summit A point on a surface that is higher in elevation than all points immediately adjacent to it, in topography

A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak, and zenith are synonymous.

Contents

The 12,536-foot (3,821 m) peak is located in the Weminuche Wilderness of San Juan National Forest, 37.0 miles (59.6 km) south (bearing 185°) of the Town of Lake City in Hinsdale County, Colorado. [1] [2] [3] [4]

Weminuche Wilderness

The Weminuche Wilderness is a wilderness area in southwest Colorado managed by the United States Forest Service as part of the San Juan National Forest on the west side of the Continental Divide and the Rio Grande National Forest on the east side of the divide. It is about 5 miles (8.0 km) south east of the town of Silverton and about 15 miles (24 km) northeast of Durango. At 488,210 acres (1,975.7 km2), it is the largest wilderness area in the state of Colorado. The wilderness was named after the Weminuche Indians.

San Juan National Forest

The San Juan National Forest is a U.S. National Forest covering over 1,878,846 acres in western Colorado. The forest occupies land in Archuleta, Conejos, Dolores, Hinsdale, La Plata, Mineral, Montezuma, Rio Grande, San Miguel and San Juan Counties. It borders the Uncompahgre National Forest to the north and the Rio Grande National Forest to the east. The forest covers most of the southern portion of the San Juan Mountains west of the Continental Divide. The forest contains two alpine wilderness areas; the Weminuche and South San Juan, as well as the Piedra Area. The Durango and Silverton Narrow Gauge Railroad passes through the National Forest.

Absolute bearing

In nautical navigation the absolute bearing is the clockwise angle between north and an object observed from the vessel. If the north used as reference is the true geographical north then the bearing is a true bearing whereas if the reference used is magnetic north then the bearing is a magnetic bearing.


See also

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References

  1. 1 2 3 4 "GRAHAM". NGS data sheet. U.S. National Geodetic Survey . Retrieved October 20, 2014.
  2. 1 2 The elevation of Graham Peak includes an adjustment of +1.625 m (+5.33 ft) from NGVD 29 to NAVD 88.
  3. 1 2 3 4 "Graham Peak, Colorado". Peakbagger.com. Retrieved October 20, 2014.
  4. 1 2 "Graham Peak". Geographic Names Information System . United States Geological Survey . Retrieved October 29, 2014.