Mount Bigelow (Washington)

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Mount Bigelow
Mt. Bigelow-Upper Eagle Lake.jpg
East aspect, summit in upper right
Highest point
Elevation 8,449 ft (2,575 m) [1]
Prominence 800 ft (244 m) [2]
Parent peak Raven Ridge (8,572 ft) [2]
Isolation 1.71 mi (2.75 km) [2]
Coordinates 48°13′05″N120°21′15″W / 48.2180825°N 120.3540503°W / 48.2180825; -120.3540503 [1]
Naming
Etymology Frank Ezra Bigelow
Geography
USA Washington relief location map.jpg
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Mount Bigelow
Location in Washington
Usa edcp relief location map.png
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Mount Bigelow
Mount Bigelow (the United States)
CountryUnited States
State Washington
County Chelan / Okanogan
Protected area Lake Chelan-Sawtooth Wilderness
Parent range Methow Mountains [3]
North Cascades
Cascade Range
Topo map USGS Martin Peak
Climbing
Easiest route class 3 scrambling [2]

Mount Bigelow is an 8,449-foot-elevation (2,575-meter) mountain summit located on the border shared by Okanogan and Chelan counties in Washington state. [1]

Contents

Description

Mount Bigelow is set on the boundary of the Lake Chelan-Sawtooth Wilderness, on land managed by the Okanogan–Wenatchee National Forest. The peak is the southernmost point in the wilderness. Bigelow ranks as the fifth-highest peak on Sawtooth Ridge, 10th-highest peak in the Methow Mountains, and the 67th-highest in Washington. [3] Other peaks of Sawtooth Ridge include Oval Peak, Star Peak, Hoodoo Peak, Courtney Peak, Switchback Peak, Martin Peak, and Raven Ridge which is the nearest higher neighbor, 1.69 miles (2.72 km) to the northeast of Bigelow. [3] Precipitation runoff from the north side of the mountain drains into East Fork Buttermilk Creek en route to the Twisp River, the west slope drains to Lake Chelan via Prince Creek, and the east side of the mountain drains into tributaries of the Methow River. Topographic relief is significant as the summit rises over 1,300 feet (396 meters) above Upper Eagle Lake in 0.35 mile (0.56 km). This mountain's toponym was officially adopted in 1971 by the U.S. Board on Geographic Names. [1] The mountain is named in memory of Frank E. Bigelow (1877–1969), an early homesteader in the Lake Chelan area who worked on trails for the Forest Service for many years. [4]

Climate

Mt. Bigelow Upper Eagle lake.jpg
Mt. Bigelow

Lying east of the Cascade crest, the area around Mount Bigelow is a bit drier than areas to the west. Summers can bring warm temperatures and occasional thunderstorms. Most weather fronts originate in the Pacific Ocean, and travel northeast toward the Cascade Mountains. As fronts approach the North Cascades, they are forced upward by the peaks (orographic lift), causing them to drop their moisture in the form of rain or snowfall onto the Cascades. As a result, the North Cascades experience high precipitation, especially during the winter months in the form of snowfall. [5] During winter months, weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer. [5]

Geology

The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks, ridges, and deep glacial valleys. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences. These climate differences lead to vegetation variety defining the ecoregions in this area.

The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch. [6] With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity persisted. [6]  In addition, small fragments of the oceanic and continental lithosphere called terranes created the North Cascades about 50 million years ago. [6]

During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. [6] The U-shaped cross sections of the river valleys are a result of recent glaciation. Uplift and faulting in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North Cascades area.

See also

Related Research Articles

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<span class="mw-page-title-main">Copper Benchmark</span> Mountain in Washington (state), United States

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<span class="mw-page-title-main">Martin Peak (Methow Mountains)</span> Mountain in Washington (state), United States

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<span class="mw-page-title-main">Switchback Peak</span> Mountain in Washington (state), United States

Switchback Peak is an 8,321-foot (2,536-metre) mountain summit located in the Methow Mountains, a subset of the North Cascades in Washington state. It is the eighth-highest peak in the Methow Mountains, and ranks 95th in the state of Washington. Switchback Peak is set on Sawtooth Ridge, on land managed by the Okanogan-Wenatchee National Forest. Other peaks of Sawtooth Ridge include Oval Peak, Star Peak, Hoodoo Peak, Courtney Peak, Mount Bigelow, and Martin Peak, which is the nearest higher neighbor, 0.96 miles (1.54 km) to the north.

<span class="mw-page-title-main">Pica Peak</span> Mountain in Washington (state), United States

Pica Peak is a 7,565-foot (2,306-metre) summit located in the Methow Mountains, a subset of the North Cascades, on the shared border between Okanogan County and Chelan County in Washington state. Pica Peak is situated 1.7 mi (2.7 km) southeast of Washington Pass, within the Okanogan-Wenatchee National Forest. The nearest higher neighbor is Copper Benchmark, 0.58 miles (0.93 km) to the southeast, and Blue Lake Peak is set 0.93 miles (1.50 km) to the west-northwest. Although modest in prominence, relief is significant as the peak rises 2,000 feet above Early Winters Basin in only 0.5 mi (1 km). Precipitation runoff on the north side of the mountain drains to the Methow River via Early Winters Creek, whereas the south side of the mountain drains into tributaries of the Stehekin River.

<span class="mw-page-title-main">Hock Mountain</span> Mountain in Washington (state), United States

Hock Mountain is a 7,750-foot-elevation summit located in the Methow Mountains, a subset of the North Cascades in Washington state. It is situated on the triple-shared boundary of North Cascades National Park, Lake Chelan-Sawtooth Wilderness, and Lake Chelan National Recreation Area, as well as the shared border between Chelan County and Okanogan County. Additionally, it lies one mile southwest of Twisp Mountain, and 2.24 miles (3.60 km) due south of Stiletto Peak, the nearest higher neighbor. The north face is steep, granitic rock, but the west slope is more moderate, allowing a scramble ascent. Precipitation runoff from the north and west sides of Hock drains to the Stehekin River via Bridge Creek, whereas the south and east sides of the mountain drain into the South Fork Twisp River.

<span class="mw-page-title-main">Twisp Mountain</span> Mountain in Washington (state), United States

Twisp Mountain is a 7,161-foot-elevation summit located in the Methow Mountains, a subset of the North Cascades in Washington state. It is situated on the shared boundary of North Cascades National Park with Lake Chelan-Sawtooth Wilderness, as well as the common border between Chelan County and Okanogan County. Additionally, it rises immediately southwest of Twisp Pass, and one mile northeast of Hock Mountain, the nearest higher neighbor. Precipitation runoff from the west side of Twisp Mountain drains to the Stehekin River via Bridge Creek, whereas the east side of the mountain drains into the South Fork Twisp River.

<span class="mw-page-title-main">Mother Lode (Methow Mountains)</span> Mountain in Washington (state), United States

Mother Lode is a 7,905-foot-elevation (2,409-meter) mountain summit located in the North Cascades, in Okanogan County, Washington. It is situated in the Lake Chelan-Sawtooth Wilderness, on land managed by Okanogan–Wenatchee National Forest. The mountain is part of the Methow Mountains, which are a subset of the Cascade Range, and the peak is approximately two miles east of the crest of the range. Mother Lode is set approximately six miles south of Washington Pass, and the nearest higher neighbor is Gilbert Mountain, three miles to the northeast. Topographic relief is significant as the north aspect rises 3,500 feet above the South Fork Twisp River in one mile. The peak was climbed in 1983 by Rick La Belle and Glen Sterr via the north ridge, and the northeast ridge was climbed in 1985 by Carl and Gordon Skoog. Precipitation runoff from the peak drains into tributaries of Twisp River, which in turn is a tributary of the Methow River.

<span class="mw-page-title-main">Gardner Mountain</span>

Gardner Mountain is an 8,898-foot-elevation (2,712-meter) mountain summit in Okanogan County of Washington state.

References

  1. 1 2 3 4 "Mount Bigelow". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 2023-08-21.
  2. 1 2 3 4 "Bigelow, Mount - 8,460' WA". listsofjohn.com. Retrieved 2023-08-21.
  3. 1 2 3 "Mount Bigelow, Washington". Peakbagger.com. Retrieved 2023-08-21.
  4. Decisions on Geographic Names in the United States, Decision List 7101, US Department of the Interior, p. 13.
  5. 1 2 Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
  6. 1 2 3 4 Kruckeberg, Arthur (1991). The Natural History of Puget Sound Country. University of Washington Press.