Old Man of the Hills

{{Short description|Mountain in the state of Montana}}

{{Use mdy dates|date=January 2025}}

{{Infobox mountain

| name = Old Man of the Hills

| other_name =

| photo = Old Man of the Hills.jpg

| photo_caption = East aspect

| elevation_ft = 8229

| elevation_ref = {{cite peakbagger|pid=50333|title=Old Man of the Hills, Montana|accessdate=2021-11-08}}

| prominence_ft = 1549

| prominence_ref =

| isolation_mi = 2.59

| isolation_ref = {{cite web|url=https://listsofjohn.com/peak/26266|title=Old Man of the Hills - 8,229' MT|website=listsofjohn.com|accessdate=2021-11-08}}

| parent_peak = Mount Frazier (8,315 ft)

| etymology =

| location = Teton County, Montana, U.S.

| map = Montana#USA

| relief = 1

| map_caption = Location in Montana##Location in the United States

| label_position = right

| range = Rocky Mountains
Rocky Mountain Front

| coordinates = {{coord|48.0528613|N|112.77281773|W|type:mountain_region:US-MT_scale:100000_source:gnis|format=dms|display=inline,title}}

| coordinates_ref =

| topo = USGS Walling Reef

| rock = Limestone

| age =

| first_ascent =

| easiest_route =

}}

Old Man of the Hills is an {{convert|8229|ft|m|abbr=off|adj=on}} mountain summit located in Teton County of the U.S. state of Montana.{{cite gnis

| id = 788421

| name = Old Man of the Hills

| accessdate = 2021-11-08}}

Description

Old Man of the Hills is located along the Rocky Mountain Front, which is a subset of the Rocky Mountains. It is situated seven miles east of the Continental Divide, along the Bob Marshall Wilderness boundary, on land managed by Lewis and Clark National Forest. The nearest town is Choteau, 32 miles to the southeast, and the nearest higher neighbor is Mount Frazier, 2.6 miles to the south-southeast. Precipitation runoff from the mountain drains into headwaters of Dupuyer Creek, and eventually makes its way to the Marias River. Topographic relief is significant as the summit rises {{convert|2,800|ft|m|abbr=off|sp=us}} above the creek in {{convert|1|mi|km|spell=in}}.

Geology

Old Man of the Hills is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the Laramide orogeny.{{cite journal|title=Geology of the Rocky Mountains and Columbias |author=Gadd, Ben |year=2008}} The Lewis Overthrust extends over {{convert|280|mi|km}} from Mount Kidd in Alberta, south to Steamboat Mountain which is located 55 miles south of Old Man of the Hills, which places Old Man of the Hills within the southern part of the Lewis Overthrust.{{Cite journal|last1=Feinstein|first1=Shimon|last2=Kohn|first2=Barry|last3=Osadetz|first3=Kirk|last4=Price|first4=Raymond A.|date=2007-01-01|title=Thermochronometric reconstruction of the prethrust paleogeothermal gradient and initial thickness of the Lewis thrust sheet, southeastern Canadian Cordillera foreland belt|journal=Geological Society of America Special Papers|language=en|volume=433|pages=167–182|doi=10.1130/2007.2433(08)|issn=0072-1077|isbn=978-0-8137-2433-1}}

Climate

Based on the Köppen climate classification, Old Man of the Hills has an alpine subarctic climate characterized by long, usually very cold winters, and mild to warm summers.{{cite journal | author = Peel, M. C. |author2=Finlayson, B. L. |author3=McMahon, T. A. | year = 2007 | title = Updated world map of the Köppen−Geiger climate classification | journal = Hydrol. Earth Syst. Sci. | volume = 11 |issue=5 | pages = 1633–1644 |doi=10.5194/hess-11-1633-2007 |bibcode=2007HESS...11.1633P |s2cid=9654551 | issn = 1027-5606| doi-access = free | url = https://hal.archives-ouvertes.fr/hal-00298818/file/hessd-4-439-2007.pdf }} Winter temperatures can drop below −10 °F with wind chill factors below −30 °F.

See also

{{portal|Mountains}}

References

{{reflist}}