Mount Lebanon (Montana)

Last updated
Mount Lebanon
Mount Lebanon.jpg
South aspect
Highest point
Elevation 5,807 ft (1,770 m) [1] [2]
Prominence 957 ft (292 m) [2]
Parent peak East Butte (5,885 ft) [2]
Isolation 1.82 mi (2.93 km) [2]
Coordinates 48°52′05″N111°03′43″W / 48.8680517°N 111.0620568°W / 48.8680517; -111.0620568 [3]
Geography
USA Montana relief location map.jpg
Red triangle with thick white border.svg
Mount Lebanon
Location in Montana
Usa edcp relief location map.png
Red triangle with thick white border.svg
Mount Lebanon
Location in the United States
CountryUnited States
State Montana
County Liberty
Parent range Sweet Grass Hills [1]
Topo map USGS Mount Lebanon
Geology
Age of rock Eocene
Mountain type Laccolith
Type of rock Igneous rock, Syenite

Mount Lebanon is a 5,807-foot (1,770-metre) mountain summit in Liberty County, Montana, United States. [3]

Contents

Description

Mount Lebanon is part of the Sweet Grass Hills and ranks as the fifth-highest peak in the range, [1] and fifth-highest in the county. [2] It is situated 26 miles (42 km) north of Chester, Montana, and eight miles (13 km) south of the Canada–United States border. Precipitation runoff from the mountain drains into tributaries of the Milk River. [1] Topographic relief is modest as the summit rises over 1,500 feet (460 meters) above the surrounding plains in one mile. The landform's toponym has been officially adopted by the United States Board on Geographic Names. [3]

Geology

Mount Lebanon is an exposed laccolith composed of diorite porphyry which was created by an igneous intrusion through older Cretaceous sedimentary rocks during the Eocene, about 50 million years ago. [4] [5] Over time, erosion of the sedimentary rock has exposed the solidified laccolith which is more resistant to weathering.

Climate

Based on the Köppen climate classification, Mount Lebanon is located in a semi-arid climate zone with long, cold, dry winters and hot summers with cool nights. [5] [6] Winter temperatures can drop below −10 °F with wind chill factors below −30 °F.

See also

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References

  1. 1 2 3 4 "Mount Lebanon, Montana". Peakbagger.com. Retrieved 2023-07-23.
  2. 1 2 3 4 5 "Lebanon, Mount - 5,807' MT". listsofjohn.com. Retrieved 2023-07-23.
  3. 1 2 3 "Mount Lebanon". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 2023-07-23.
  4. Sweet Grass Hills, blm.gov, Retrieved 2023-07-23.
  5. 1 2 Sweet Grass Hills Resource(s) Management Plan (RMP) Amendment and West HiLine Resource(s) Management Plan (RMP), Toole County, Liberty County: Environmental Impact Statement, 1996, p. 19, 20.
  6. Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11. ISSN   1027-5606.