Cloud Peak Glacier is in the

Bighorn Mountains The Bighorn Mountains ( or ) are a mountain range in northern Wyoming and southern Montana in the United States, forming a northwest-trending spur from the Rocky Mountains extending approximately northward on the Great Plains. They are separa ...

in the northcentral section of the U.S. state of

Wyoming Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...

. Centered within the Cloud Peak Wilderness of

Bighorn National Forest The Bighorn National Forest is a U.S. National Forest located in northern Wyoming, United States and consists of over 1.1 million acres (4,500 km2). Created as a US Forest reserve, Forest Reserve in 1897, it is one of the oldest government- ...

, Cloud Peak Glacier is the only active glacier in the Bighorn Mountains. The glacier is in a deep

cirque A (; from the Latin word ) is an amphitheatre-like valley formed by Glacier#Erosion, glacial erosion. Alternative names for this landform are corrie (from , meaning a pot or cauldron) and ; ). A cirque may also be a similarly shaped landform a ...

immediately northeast of Cloud Peak, the highest peak in the Bighorn Mountains. Cloud Peak Glacier lies at approximately above sea level. Cloud Peak Glacier is retreating rapidly and is expected to disappear entirely sometime between the years 2020 and 2034. Photographs taken in 1905 and again in 2005 demonstrated an obvious reduction in the area the glacier, and more ominously, a huge loss of thickness. Between 1905 and 2005, the glacier has been reduced in size from an estimated to .

References

Glaciers of Wyoming Glaciers of Johnson County, Wyoming Bighorn National Forest {{US-glacier-stub

See also

References