Mount Lebanon (Montana)

Mount Lebanon
Mount Lebanon
	South aspect
Highest point
Elevation	5,807 ft (1,770 m)
Prominence	957 ft (292 m)
Parent peak	East Butte (5,885 ft)
Isolation	1.82 mi (2.93 km)
Coordinates	48°52′05″N111°03′43″W / 48.8680517°N 111.0620568°W
Geography
	Mount Lebanon Location in Montana Mount Lebanon Location in the United States
Country	United States
State	Montana
County	Liberty
Parent range	Sweet Grass Hills
Topo map	USGS Mount Lebanon
Geology
Rock age	Eocene
Mountain type	Laccolith
Rock type	Igneous rock, Syenite

Last updated December 07, 2024

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

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.

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References

1 2 3 4 "Mount Lebanon, Montana". Peakbagger.com. Retrieved 2023-07-23.
1 2 3 4 5 "Lebanon, Mount - 5,807' MT". listsofjohn.com. Retrieved 2023-07-23.
1 2 3 "Mount Lebanon". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 2023-07-23.
↑ Sweet Grass Hills, blm.gov, Retrieved 2023-07-23.
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.
↑ 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.

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[pb-1] 1 2 3 4 "Mount Lebanon, Montana". Peakbagger.com. Retrieved 2023-07-23.

[listsofjohn-2] 1 2 3 4 5 "Lebanon, Mount - 5,807' MT". listsofjohn.com. Retrieved 2023-07-23.

[gnis-3] 1 2 3 "Mount Lebanon". Geographic Names Information System . United States Geological Survey, United States Department of the Interior . Retrieved 2023-07-23.

[blm-4] Sweet Grass Hills, blm.gov, Retrieved 2023-07-23.

[EIS-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.

[Peel-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.

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