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Mount Winthrop

Mount Winthrop is a prominent 7,850-foot (2,393-metre) mountain summit located in Okanogan County of Washington state. The mountain is part of the Hozameen Range of the North Cascades and is situated 2 miles (3.2 km) south of the Canada–United States border within the Pasayten Wilderness, on land managed by the Okanogan–Wenatchee National Forest. The nearest higher peak is Frosty Mountain, 4.6 miles (7.4 km) to the northwest.[2] Precipitation runoff from the mountain drains into tributaries of the Similkameen River. Like many North Cascades peaks, Mount Winthrop is more notable for its steep rise above local terrain than for its absolute elevation. Topographic relief is significant as the west aspect rises 2,850 feet (870 m) above Route Creek in 1.0 mile (1.6 km). The Pacific Northwest Trail traverses the southeast slope of the mountain and the Pacific Crest Trail traverses the western base of the mountain.

Mount Winthrop
North aspect
Highest point
Elevation7,850 ft (2,393 m)[1][2]
Prominence1,690 ft (515 m)[2]
Parent peakThree Fools Peak[3]
Isolation4.34 mi (6.98 km)[3]
Coordinates48°58′22″N 120°46′03″W / 48.9727956°N 120.7674964°W / 48.9727956; -120.7674964[4]
Geography
Mount Winthrop
Location of Mt. Winthrop in Washington
Mount Winthrop
Mount Winthrop (the United States)
Location
Parent rangeHozameen Range
North Cascades
Cascade Range
Topo mapUSGS Castle Peak
Climbing
First ascent1940[1]

History edit

 
Mt. Winthrop centered, seen from Manning Park

The first ascent of the summit was likely made in 1940 by Everett Darr and H.L. Frewing.[1] There is no record of the namesake for this mountain, however in Washington the town of Winthrop and the Winthrop Glacier are both named after Theodore Winthrop who toured the Washington Territory in 1853 and wrote of it in his book, The Canoe and the Saddle. He had an interest in the local mountains as he was the original advocate that Mount Rainier and Mount Baker should instead be called by their Native American names, "Tacoma" and "Kulshan" respectively.[5]

Geology edit

The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks, granite spires, 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 various climate differences.

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 section of the river valleys is 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.

Climate edit

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 west side of the North Cascades experiences higher precipitation than the east side, especially during the winter months in the form of snowfall. 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.[1]

See also edit

References edit

  1. ^ a b c d Beckey, Fred W. (2008). Cascade Alpine Guide (3rd ed.). Mountaineers Books.
  2. ^ a b c "Mount Winthrop, Washington". Peakbagger.com. Retrieved March 7, 2023.
  3. ^ a b "Winthrop, Mount – 7,850' WA". listsofjohn.com. Retrieved March 7, 2023.
  4. ^ "Mount Winthrop". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved March 7, 2023.
  5. ^ Theodore Winthrop, John Harvey Williams (1913), The Canoe and the Saddle
  6. ^ a b c d Kruckeberg, Arthur (1991). The Natural History of Puget Sound Country. University of Washington Press.

External links edit

  • Weather forecast: Mount Winthrop

mount, winthrop, prominent, foot, metre, mountain, summit, located, okanogan, county, washington, state, mountain, part, hozameen, range, north, cascades, situated, miles, south, canada, united, states, border, within, pasayten, wilderness, land, managed, okan. Mount Winthrop is a prominent 7 850 foot 2 393 metre mountain summit located in Okanogan County of Washington state The mountain is part of the Hozameen Range of the North Cascades and is situated 2 miles 3 2 km south of the Canada United States border within the Pasayten Wilderness on land managed by the Okanogan Wenatchee National Forest The nearest higher peak is Frosty Mountain 4 6 miles 7 4 km to the northwest 2 Precipitation runoff from the mountain drains into tributaries of the Similkameen River Like many North Cascades peaks Mount Winthrop is more notable for its steep rise above local terrain than for its absolute elevation Topographic relief is significant as the west aspect rises 2 850 feet 870 m above Route Creek in 1 0 mile 1 6 km The Pacific Northwest Trail traverses the southeast slope of the mountain and the Pacific Crest Trail traverses the western base of the mountain Mount WinthropNorth aspectHighest pointElevation7 850 ft 2 393 m 1 2 Prominence1 690 ft 515 m 2 Parent peakThree Fools Peak 3 Isolation4 34 mi 6 98 km 3 Coordinates48 58 22 N 120 46 03 W 48 9727956 N 120 7674964 W 48 9727956 120 7674964 4 GeographyMount WinthropLocation of Mt Winthrop in WashingtonShow map of Washington state Mount WinthropMount Winthrop the United States Show map of the United StatesLocationPasayten WildernessOkanogan CountyWashington USParent rangeHozameen RangeNorth CascadesCascade RangeTopo mapUSGS Castle PeakClimbingFirst ascent1940 1 Contents 1 History 2 Geology 3 Climate 4 See also 5 References 6 External linksHistory edit nbsp Mt Winthrop centered seen from Manning ParkThe first ascent of the summit was likely made in 1940 by Everett Darr and H L Frewing 1 There is no record of the namesake for this mountain however in Washington the town of Winthrop and the Winthrop Glacier are both named after Theodore Winthrop who toured the Washington Territory in 1853 and wrote of it in his book The Canoe and the Saddle He had an interest in the local mountains as he was the original advocate that Mount Rainier and Mount Baker should instead be called by their Native American names Tacoma and Kulshan respectively 5 Geology editThe North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks granite spires 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 various climate differences 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 section of the river valleys is 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 Climate editMost 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 west side of the North Cascades experiences higher precipitation than the east side especially during the winter months in the form of snowfall 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 1 See also edit nbsp Mountains portalGeography of the North Cascades Geology of the Pacific NorthwestReferences edit a b c d Beckey Fred W 2008 Cascade Alpine Guide 3rd ed Mountaineers Books a b c Mount Winthrop Washington Peakbagger com Retrieved March 7 2023 a b Winthrop Mount 7 850 WA listsofjohn com Retrieved March 7 2023 Mount Winthrop Geographic Names Information System United States Geological Survey United States Department of the Interior Retrieved March 7 2023 Theodore Winthrop John Harvey Williams 1913 The Canoe and the Saddle a b c d Kruckeberg Arthur 1991 The Natural History of Puget Sound Country University of Washington Press External links editWeather forecast Mount Winthrop Retrieved from https en wikipedia org w index php title Mount Winthrop amp oldid 1194029481, wikipedia, wiki, book, books, library,

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