Mount Lago

Mount Lago[3] is a prominent 8,745-foot (2,665-metre) mountain summit located in the Okanogan Range of the North Cascades, in Okanogan County of Washington state. The mountain is situated on the eastern side of the Cascade crest, in the Pasayten Wilderness, on land managed by Okanogan National Forest. The nearest higher peak is Jack Mountain, 19.5 miles (31.4 km) to the west-southwest.[1] Mount Lago is the highest summit of the Okanogan Range, and follows only Jack Mountain {9,075 ft} as the highest peak in the Pasayten Wilderness. Lago is the fourth-most prominent mountain in the Pasayten Wilderness.[4] Precipitation runoff from the mountain drains into tributaries of the Pasayten River and Methow River. The mountain was named for Lage Wernstedt (1878-1959), a Forest Service surveyor who made numerous first ascents of the mountains he was mapping in the North Cascades.[2] Lago, is a play on the way Americans pronounced his name.[5] Lage, pronounced Loggy, had a son named Lago.[6]

Mount Lago
Mount Lago from the east
Highest point
Elevation8,745 ft (2,665 m) [1]
Prominence3,268 ft (996 m) [1]
Parent peakJack Mountain
ListingWashington highest major summits 25th
Coordinates48°49′46″N 120°32′15″W [1]
Geography
Mount Lago
Location of Mount Lago in Washington
Mount Lago
Mount Lago (the United States)
Location
Parent rangeOkanogan Range
North Cascades
Cascade Range
Topo mapUSGS Mount Lago
Climbing
First ascent1933 Hermann Ulrichs, Dick Alt [2]
Easiest routeScramble south slopes

Geology

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.[7] With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity persisted.[7] In addition, small fragments of the oceanic and continental lithosphere called terranes created the North Cascades about 50 million years ago.[7]

During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris.[7] The "U"-shaped cross section 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.

Climate

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 of the Cascade Range, causing them to drop their moisture in the form of rain or snowfall onto the Cascades (Orographic lift). 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.[8]

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See also

References
  1. "Mount Lago, Washington". Peakbagger.com. Retrieved 2020-07-22.
  2. "Mount Lago". Bivouac.com. Retrieved 2019-06-25.
  3. "Mount Lago". Geographic Names Information System. United States Geological Survey. Retrieved 2019-06-25.
  4. "Pasayten Wilderness : Climbing, Hiking & Mountaineering : SummitPost". Summitpost.org. Retrieved 25 June 2019.
  5. Lage Werndtedt methow.net
  6. "Mount Lago : Climbing, Hiking & Mountaineering : SummitPost". Summitpost.org. Retrieved 25 June 2019.
  7. Kruckeberg, Arthur (1991). The Natural History of Puget Sound Country. University of Washington Press.
  8. Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
  • Mount Lago weather: NOAA
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