Thunder Glacier (Mount Baker)

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Thunder Glacier
USA Washington relief location map.jpg
Red pog.svg
Thunder Glacier
Type Mountain glacier
Coordinates 48°46′25″N121°51′47″W / 48.77361°N 121.86306°W / 48.77361; -121.86306 Coordinates: 48°46′25″N121°51′47″W / 48.77361°N 121.86306°W / 48.77361; -121.86306 [1]
Length .90 mi (1.45 km)
Terminus Talus/Icefall
Status Retreating

Thunder Glacier is located on the west slopes of Mount Baker in the North Cascades of the U.S. state of Washington. [2] The glacier descends to the west on the north side of the Black Buttes. [2]

Mount Baker mountain in Washington state, United States

Mount Baker, also known as Koma Kulshan or simply Kulshan, is an active glaciated andesitic stratovolcano in the Cascade Volcanic Arc and the North Cascades of Washington in the United States. Mount Baker has the second-most thermally active crater in the Cascade Range after Mount Saint Helens. About 31 miles (50 km) due east of the city of Bellingham, Whatcom County, Mount Baker is the youngest volcano in the Mount Baker volcanic field. While volcanism has persisted here for some 1.5 million years, the current glaciated cone is likely no more than 140,000 years old, and possibly no older than 80–90,000 years. Older volcanic edifices have mostly eroded away due to glaciation.

North Cascades mountains in the U.S. and Canada

The North Cascades are a section of the Cascade Range of western North America. They span the border between the Canadian province of British Columbia and the U.S. state of Washington and are officially named in the U.S. and Canada as the Cascade Mountains. The portion in Canada is known to Americans as the Canadian Cascades, a designation that also includes the mountains above the east bank of the Fraser Canyon as far north as the town of Lytton, at the confluence of the Thompson and Fraser Rivers.

U.S. state constituent political entity of the United States

In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.

See also

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Black Buttes landform

The Black Buttes, also known historically as the Sawtooth Rocks, make up an extinct stratovolcano in the Cascade Volcanic Arc in Whatcom County, Washington, United States. Glacially eroded remnants of this volcano rise above the Deming Glacier, part of the glacier system of the nearby volcano Mount Baker. There are three major peaks — Colfax, Lincoln, and Seward — which can all be climbed.

Coleman Glacier (Washington) glacier in the United States

Coleman Glacier is located on Mount Baker in the North Cascades of the U.S. state of Washington. Between 1850 and 1950, Coleman Glacier retreated 8,200 ft (2,500 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 2,480 ft (760 m) but between 1980 and 2006 retreated back 1,443 ft (440 m). Situated on the west slopes of Mount Baker, Coleman Glacier is bordered by the Roosevelt Glacier to the north and the Heliotrope Ridge to the south.

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Bastile Glacier glacier in the United States

Bastile Glacier is located on the north slopes of Mount Baker in the North Cascades, U.S. state of Washington.

Deming Glacier (Washington) glacier in the United States

Deming Glacier is located on Mount Baker in the North Cascades of the U.S. state of Washington. Between 1850 and 1950, Deming Glacier retreated 7,217 ft (2,200 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 2,060 ft (630 m) but between 1980 and 2006 retreated back 1,140 ft (350 m). Situated on the southwest slopes of Mount Baker, Deming Glacier is bordered by the Easton Glacier to the east and the Black Buttes ridge to the west.

Hadley Glacier glacier in the United States

Hadley Glacier is located on Mount Baker in the North Cascades of the U.S. state of Washington. Situated on the north slopes of Mount Baker, Hadley Glacier is north of Hadley Peak on a spur from Mount Baker.

Mazama Glacier (Mount Baker) glacier in the United States

Mazama Glacier is located on Mount Baker in the North Cascades of the U.S. state of Washington. Between 1850 and 1950, Mazama Glacier retreated 7,700 ft (2,300 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 1,476 ft (450 m) but between 1980 and 2006 retreated back 1,509 ft (460 m). Situated on the north slopes of Mount Baker, Mazama Glacier is bordered by the Park Glacier to the south and Rainbow Glacier to the east.

Park Glacier glacier in the United States

Park Glacier is located on the northeast slopes of Mount Baker in the North Cascades of the U.S. state of Washington. Park Glacier descends to the Park Cliffs along its eastern margin while the northern tongue of the glacier descends to nearly 4,500 ft (1,400 m) and is below Park Cliffs and Lava Divide. In the middle of its course, Park Glacier is connected to Rainbow Glacier to the north and Boulder Glacier to the south.

Rainbow Glacier (Washington)

Rainbow Glacier is located on the northeast slopes of Mount Baker in the North Cascades of the U.S. state of Washington. Rainbow Glacier descends to nearly 4,500 ft (1,400 m) to the north of Lava Divide. In the middle of its course, Rainbow Glacier is connected to Park Glacier to its south and Mazama Glacier to the west. Between 1850 and 1950, Rainbow Glacier retreated 4,494 ft (1,370 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 1,679 ft (512 m) but between 1980 and 2006 retreated back 1,345 ft (410 m).

Roosevelt Glacier glacier in the United States

Roosevelt Glacier is located on the north slopes of Mount Baker in the North Cascades of the U.S. state of Washington. Roosevelt Glacier descends to nearly 5,000 ft (1,500 m) at Chromatic Moraine. In the middle of its course, Roosevelt Glacier is connected to Coleman Glacier to its south.

Sholes Glacier glacier in the United States

Sholes Glacier is located on the northeast slopes of Mount Baker in the North Cascades of the U.S. state of Washington. The glacier lies on the north side of the ridge known as The Portals. Between 1850 and 1950, Sholes Glacier retreated 3,838 ft (1,170 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 187 ft (57 m) but between 1980 and 2006 retreated back 278 ft (85 m).

Squak Glacier glacier in the United States

Squak Glacier is located on the southeast slopes of Mount Baker in the North Cascades of the U.S. state of Washington. Squak Glacier is connected to Easton Glacier to the east and Talum Glaciers to the west. Between 1850 and 1950, Squak Glacier retreated 8,202 ft (2,500 m). During a cooler and wetter period from 1950 to 1979, the glacier advanced 305 ft (93 m) but between 1980 and 2006 retreated back 869 ft (265 m).

Talum Glaciers glacier in the United States

The Talum Glaciers are located on the southeast slopes of Mount Baker in the North Cascades of the U.S. state of Washington. The glaciers are connected to Squak Glacier to the west. Between 1850 and 1950, the Talum Glaciers retreated 6,479 ft (1,975 m). During a cooler and wetter period from 1950 to 1979, the glaciers advanced 902 ft (275 m) but between 1980 and 2006 retreated back 951 ft (290 m).

Avalanche Glacier glacier in the United States

Avalanche Glacier is located on the west to southwest slopes of Mount Adams a stratovolcano in the Gifford Pinchot National Forest in the U.S. state of Washington. The glacier descends from the White Salmon Glacier at 10,200 ft (3,100 m) to a terminus near 7,600 ft (2,300 m). Avalanche Glacier has been in a general state of retreat for over 100 years and lost 59 percent of its surface area between 1904 and 2006.

Milk Lake Glacier glacier in the United States

Milk Lake Glacier is located in the Glacier Peak Wilderness in the U.S. state of Washington. The glacier is within Mount Baker-Snoqualmie National Forest and a little over 3 mi (4.8 km) northwest of Glacier Peak. Milk Lake Glacier disappeared sometime between 1984 and 1997 and by 2005, Milk Lake was situated where the glacier had once been.

References

  1. "Thunder Glacier". Geographic Names Information System . United States Geological Survey . Retrieved 2012-11-03.
  2. 1 2 Mount Baker, WA (Map). TopoQwest (United States Geological Survey Maps). Retrieved 2012-11-03.