Cirque Mountain | |
---|---|
Northeast aspect, with Triad Lake | |
Highest point | |
Elevation | 7,966 ft (2,428 m) [1] |
Prominence | 246 ft (75 m) [1] |
Parent peak | Napeequa Peak 8,073 ft [1] |
Isolation | 2.3 mi (3.7 km) [2] |
Coordinates | 48°06′31″N120°58′22″W / 48.108491°N 120.972701°W Coordinates: 48°06′31″N120°58′22″W / 48.108491°N 120.972701°W [1] |
Geography | |
Location | Glacier Peak Wilderness Washington, U.S. |
Parent range | North Cascades Cascade Range |
Topo map | USGS Clark Mountain |
Geology | |
Age of rock | Cretaceous |
Type of rock | Granodiorite [3] |
Cirque Mountain is a 7,966-foot (2,428-metre) mountain summit located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, also straddling the boundary between the Mount Baker-Snoqualmie National Forest and the Wenatchee National Forest. Its nearest higher peak is Napeequa Peak, 0.3 mi (0.48 km) to the south. The peak is set on Chiwawa Ridge with Napeequa, and other notable peaks on this ridge include Fortress Mountain, Buck Mountain, Brahma Peak, and Chiwawa Mountain. Topographic relief is significant since the western aspect of the mountain rises 4,000 feet above the Suiattle Valley in approximately 1.5 mi (2.4 km). This mountain has small, unnamed, hanging glaciers in cirques surrounding the summit. Precipitation runoff from the peak and meltwater from the glaciers drains east to the headwaters of Napeequa River; or west into the Suiattle River.
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 various climate differences.
The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch. [4] With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity persisted. [4] In addition, small fragments of the oceanic and continental lithosphere called terranes created the North Cascades about 50 million years ago. [4] During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured and shaped the landscape. [4] Glaciation was most prevalent approximately 18,000 years ago, and most valleys were ice-free by 12,000 years ago. [3] 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.
Subduction and tectonic activity in the area began during the late cretaceous period, about 90 million years ago. Extensive volcanic activity began to take place in the oligocene, about 35 million years ago. [5] Glacier Peak, a stratovolcano that is 6.5 mi (10.5 km) west of Cirque Mountain, began forming in the mid-Pleistocene. [3] Due to Glacier Peak's proximity to Cirque Mountain, volcanic ash is common in the area.
Cirque Mountain is located in the marine west coast climate zone of western North America. [3] 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 high precipitation, especially during the winter months in the form of snowfall. [3] 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. [3] Because of maritime influence, snow tends to be wet and heavy, resulting in high avalanche danger. [3]
Sahale Mountain is a jagged, glaciated mountain, in North Cascades National Park, in northern Washington state. The summit of Sahale Mountain is referred to as Sahale Peak. It is 0.3 miles (0.48 km) south of its higher neighbor, Boston Peak, and the saddle between the two is 80 feet (24 m) lower than Sahale's summit. Quien Sabe Glacier is to the west of the ridge between the two peaks while Davenport Glacier is in a cirque east of this ridge and above Horseshoe Basin. Sahale Glacier is south of the summit and east of Sahale Arm, a ridge that extends southwest from Sahale to Cascade Pass. The name Sahale may originate from a Northwest Native American word meaning "high place," "falcon," or "sacred."
Forbidden Peak is an 8,815 feet (2,687 m) glacial horn located in North Cascades National Park, in Skagit County of Washington state. It is part of the North Cascades and is located near Cascade Pass. Forbidden Peak features a rock climbing route named West Ridge route which is featured in Fifty Classic Climbs of North America. The peak was first climbed by a party consisting of Fred Beckey, his brother Helmy Beckey, Jim Crooks, Lloyd Anderson and Dave Lind in 1940.
Frisco Mountain is a 7,760-foot (2,370-metre) mountain summit in the Cascade Range in the U.S. state of Washington. It is located two miles southwest of Rainy Pass on the borders of the Stephen Mather Wilderness and North Cascades National Park. The mountain derives its name from a mining claim on the south side that was worked in the 1920s. Its nearest higher peak is Rainy Peak, 0.54 mi (0.87 km) to the east-southeast. Precipitation runoff from Frisco Mountain drains into Rainy Lake and tributaries of Bridge Creek. The retreating Lyall Glacier in its northeast cirque contributes to waterfalls which tumble 1,000 ft (300 m) into Rainy Lake.
Icy Peak is a 7,073-foot (2,156-metre) Skagit Range mountain summit located in the North Cascades of Washington state. It is situated in North Cascades National Park at the head of Nooksack Cirque. High ridges connect it to Seahpo Peak and Mount Shuksan. An icefall occupies the northeast cirque, and small glaciers clad all sides of the peak.
Magic Mountain is a 7,610-foot (2,320-metre) mountain summit located on the shared boundary of Skagit County and Chelan County in Washington state. It is part of the North Cascades Range, a subset of the Cascade Range. Magic Mountain is situated southeast of Cascade Pass on the shared border of North Cascades National Park and Glacier Peak Wilderness. The nearest peak is Pelton Peak 0.4 miles (0.64 km) to the northeast, and the nearest higher peak is Hurry-up Peak 0.83 miles (1.34 km) to the south. The Yawning Glacier and Cache Col Glacier rest on its northern flank. Magic Mountain is at the northern end of the Ptarmigan Traverse. Surface runoff on the north side the mountain drains into the Stehekin River, while precipitation drains into the Cascade River from the southwest side.
Mix-up Peak, also known as Mixup Peak, is a 7,440-foot (2,270-metre) mountain summit located on the shared boundary of Skagit County and Chelan County in Washington state. It is part of the North Cascades Range and is situated one mile south of Cascade Pass on the shared border of North Cascades National Park and Glacier Peak Wilderness. The nearest higher peak is Magic Mountain, 1.02 miles (1.64 km) to the east-southeast. Mix-up Peak is at the northern end of the Ptarmigan Traverse which is an alpine route to remote mountains such as Mount Formidable and Dome Peak. The Cache Glacier occupies a cirque below its eastern flank. Surface runoff on the east side the mountain drains into the Stehekin River, whereas precipitation runoff drains into the Cascade River from the west side.
Prairie Mountain is a 5,678 ft mountain summit near the western edge of the North Cascades, in Snohomish County of Washington state. It is located six miles east of Darrington, Washington, and northwest of Glacier Peak which is one of the Cascade stratovolcanoes. It is situated on land administered by the Mount Baker-Snoqualmie National Forest. The nearest higher peak is White Chuck Mountain, 4.7 miles (7.6 km) to the south-southeast. Precipitation runoff from Prairie Mountain drains into the Sauk River and Suiattle River, both tributaries of the Skagit River.
Mount Misch is a remote 7,435 ft mountain summit in the North Cascades, in Skagit County of Washington state. It is the highest point of the Buckindy Range, or Buckindy Ridge. It is located 19 miles east-northeast of Darrington, Washington, and 15 miles north-northwest of Glacier Peak which is one of the Cascade stratovolcanoes. It is situated in the Glacier Peak Wilderness on land administered by the Mount Baker-Snoqualmie National Forest. Mount Misch was named by mountaineer and author Fred Beckey for his friend Peter Misch (1909-1987), University of Washington geology professor and mountaineer, who was renowned for his study of the North Cascades. Precipitation runoff from Mount Misch and the unnamed Goat Creek glacier on its east slope drains into tributaries of the Suiattle River and ultimately the Skagit River.
Inspiration Peak is a 7,880+ ft mountain summit located in the Picket Range within North Cascades National Park in the state of Washington. The peak lies 0.28 mi (0.45 km) east of Mount Degenhardt, and 0.47 mi (0.76 km) west of McMillan Spires. Terror Glacier remnants lie to the south of the peaks, and the McMillan Cirque glaciers hang on the north slopes. The first ascent of Inspiration Peak was made in 1940 by Fred Beckey and his brother Helmy via the West Ridge. Inspiration Peak can be seen from the North Cascades National Park Newhalem visitor center, weather permitting.
Tricouni Peak is an 8,102-foot (2,469-metre) mountain summit located in Skagit County of Washington state. It is situated in North Cascades National Park, north of the North Klawatti Glacier and southeast of the Borealis Glacier. Its nearest higher peak is Primus Peak, 0.54 mi (0.87 km) to the west. Precipitation runoff from Tricouni drains into Thunder Creek. The peak is named for the tricouni which was used for traction on ice, and the approach to the peak involves traversing a glacier.
Dumbell Mountain is an 8,421-foot (2,567-metre) double summit massif located in the Glacier Peak Wilderness of the North Cascades, in Chelan County of Washington state. The Dumbell summit is slightly higher than the northeast subpeak (8,415 ft) which is unofficially called Greenwood Mountain. Its nearest higher peak is Chiwawa Mountain, 2.4 mi (3.9 km) to the east-southeast. Precipitation runoff from Dumbell Mountain drains into tributaries of the Chelan River and the Wenatchee River. The mountain's descriptive name was applied by Albert Hale Sylvester (1871-1944), a pioneer surveyor, explorer, topographer, and forest supervisor in the Cascades.
Chiwawa Mountain is an 8,459-foot (2,578-metre) mountain summit located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, also straddling the boundary between the Mount Baker-Snoqualmie National Forest and the Wenatchee National Forest. Its nearest higher peak is Fortress Mountain, 1.12 mi (1.80 km) to the west. Chiwawa Mountain is a triple divide peak, so precipitation runoff from it drains northeast to Lake Chelan via Railroad Creek; northwest into Miners Creek which is a tributary of the Suiattle River; and south into the Chiwawa River headwaters. The mountain's name is taken from the river's name, which was applied by Albert Hale Sylvester (1871-1944), a pioneer surveyor, explorer, topographer, and forest supervisor in the Cascades. Chiwawa comes from the Columbia-Moses language and means a kind of creek.
Buck Mountain is an 8,528-foot (2,599-metre) mountain summit located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated in Chelan County, in the Wenatchee National Forest. Its nearest higher peak is Clark Mountain, 3.98 mi (6.41 km) to the southwest, and Brahma Peak is set 1.8 mi (2.9 km) to the south. Precipitation runoff from it drains into Buck Creek, Chiwawa River, and Napeequa River, each a tributary of the Wenatchee River. The mountain's name was applied by Albert Hale Sylvester (1871-1944), a pioneer surveyor, explorer, topographer, and forest supervisor in the Cascades.
Kololo Peaks is an 8,200+ ft mountain located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, and also straddling the boundary between Mount Baker-Snoqualmie National Forest and Wenatchee National Forest. Its nearest higher peak is Glacier Peak, 3.29 mi (5.29 km) to the north. Precipitation runoff and melt-water from the White River Glacier on the southeast slope drains into White River. On the west slope, the White Chuck Glacier drains into the White Chuck River, and the Suiattle Glacier and Honeycomb Glacier on the north and east sides drain into the Suiattle River. Surrounded by these glaciers, Fred Beckey in his Cascade Alpine Guide describes the mountain as being almost a nunatak.
Luahna Peak is an 8,400+ ft double summit mountain located in the Glacier Peak Wilderness of the North Cascades in Washington state. The true summit is 7400+ feet in elevation, and the northwest subpeak is 8,320+ feet. The mountain is situated in Chelan County, in the Wenatchee National Forest. Luahna Peak is the second highest in the Dakobed Range after Clark Mountain which is 1.04 mi (1.67 km) to the southeast, and Luahna lies 6.95 mi (11.18 km) southeast of Glacier Peak. The Richardson Glacier lies to the southeast of the summit, with the Pilz Glacier and Butterfly Glacier stretching across the northern slope. Precipitation runoff from the peak drains into the White River and Napeequa River, both tributaries of the Wenatchee River.
Napeequa Peak is an 8,073-foot (2,461-metre) pyramidal mountain summit located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, also straddling the boundary between the Mount Baker-Snoqualmie National Forest and the Wenatchee National Forest. Its nearest neighbor is Cirque Mountain, 0.3 mi to the north, and the nearest higher peak is Buck Mountain, 2.56 mi (4.12 km) to the east-southeast. Precipitation runoff from the peak drains east to the headwaters of Napeequa River; or west into the Suiattle River. The mountain's name is taken from the river's name, which was applied by Albert Hale Sylvester (1871-1944), a pioneer surveyor, explorer, topographer, and forest supervisor in the Cascades.
Tiffany Mountain is an 8,245-foot (2,513-metre) mountain summit located in Okanogan County in Washington state. It is the highest point in the Tiffany Range, which is a sub-range of the Okanogan Range. The mountain is situated on the east side of the Cascade crest, on land managed by Okanogan National Forest. The nearest higher peak is Windy Peak, 18 miles (29 km) to the north. Precipitation runoff from Tiffany Mountain drains into tributaries of the Columbia River.
Brahma Peak is a remote 8,078-foot (2,462-metre) mountain summit located on Chiwawa Ridge in the North Cascades, in Chelan County of Washington state. The mountain is situated in the Glacier Peak Wilderness, on land managed by the Wenatchee National Forest. Its nearest higher neighbor is Buck Mountain, 1.8 mi (2.9 km) to the north. Brahma and Buck are set on Chiwawa Ridge, and other notable peaks on this ridge include Fortress Mountain, Cirque Mountain, Napeequa Peak, and Chiwawa Mountain. Precipitation runoff from Brahma and meltwater from its glacier remnants drains into Chiwawa River and Napeequa River, both tributaries of the Wenatchee River. Topographic relief is significant since the southwest lavender-colored schist cliffs of this peak rise nearly 4,000 feet above the Napeequa River Valley in approximately one mile.
Emerald Peak is an 8,422 ft (2,570 m) mountain summit located in the Chelan Mountains, in Chelan County of Washington state. The mountain is situated in Glacier Peak Wilderness of the North Cascades, on land managed by Wenatchee National Forest. Its nearest higher peak is Cardinal Peak, 1.1 mi (1.8 km) to the southeast, and Saska Peak is positioned 0.66 mi (1.06 km) to the west-southwest. These three highest peaks of the Chelan Mountains enclose the head of North Fork Entiat River valley. Bearcat Ridge radiates from Emerald Peak one mile to the northeast. Precipitation runoff from the peak drains into the Chelan River and Entiat River drainage basins. The first ascent of this peak was made in 1937 by William A. Long. Emerald Peak ranks as the second-highest peak in the Chelan Mountains, and 70th-highest summit in Washington state.
Tenpeak Mountain is an 8,200+ ft granitic mountain summit located in the Glacier Peak Wilderness of the North Cascades in Washington state. Fred Beckey's Cascade Alpine Guide has the elevation of the mountain as 8,281 feet. Tenpeak is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, also straddling the boundary between the Mount Baker-Snoqualmie National Forest and the Wenatchee National Forest. Its nearest higher neighbor is Luahna Peak, 2.5 mi (4.0 km) to the southeast. Topographic relief is significant since the northern aspect of the mountain rises 4,200 feet above the Suiattle Valley in approximately 1.5 mi (2.4 km). This mountain has small, unnamed, hanging glaciers in cirques surrounding the summit, and the terminus of the Honeycomb Glacier lies below the western base of the mountain. Precipitation runoff from the mountain and meltwater from the glaciers drains south into White River; or north into the Suiattle River. This mountain's descriptive name was suggested by The Mountaineers, and was officially adopted in 1918 by the U.S. Board on Geographic Names. The first ascent was made September 21, 1940, by Lloyd Anderson and Tom Campbell.