B-7 Pillar

{{Infobox mountain

| name = B-7 Pillar

| photo = B-7 Pillar and Iceberg Notch.jpg

| photo_caption = B-7 Pillar and Iceberg Notch

| elevation_ft = 8716

| elevation_ref = {{cite peakbagger|pid=4768|name=B-7 Pillar, Montana|accessdate=May 23, 2018}}

| prominence_ft = 392

| prominence_ref =

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

| map = Montana#USA

| relief = 1

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

| range = Lewis Range

| coordinates = {{coord|48|49|20|N|113|45|10|W|type:mountain_region:US|display=inline,title}}

| coordinates_ref =

| topo = USGS Ahern Pass MT

| first_ascent =

| easiest_route = {{YDS|5}} climbing

}}

B-7 Pillar ({{convert|8716|ft|m|0}}) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana.{{Cite map|publisher=TopoQwest (United States Geological Survey Maps)|title=Ahern Pass, MT|url=https://www.topoquest.com/map.php?lat=48.82219&lon=-113.75189&datum=nad83&zoom=4&map=auto&coord=d&mode=pan&size=m|accessdate=May 23, 2018}} The summit is located just northeast of Iceberg Peak, and one-half mile east of the Continental Divide.

Climate

Based on the Köppen climate classification, it is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool 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 }} Temperatures can drop below −10 °F with wind chill factors below −30 °F.

Geology

Like other mountains in Glacier National Park, it is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks {{convert|3|mi|km|1|abbr=on}} thick, {{convert|50|mi|km}} wide and {{convert|160|mi|km}} long over younger rock of the cretaceous period.{{cite journal|title=Geology of the Rocky Mountains and Columbias |author=Gadd, Ben |year=2008}}

Gallery

File:B-7 Pillar in Glacier National Park 2024.jpg|B-7 Pillar centered

File:B-7 Pillar in Glacier National Park.jpg|B-7 Pillar right of center, Iceberg Peak to left

File:Iceberg Lake Trail - Glacier National Park.jpg|B-7 Pillar upper right, Iceberg Peak to left

File:Unnamed Pillar.jpg|B-7 Pillar, southeast face

File:Mount Wilbur - Ptarmigan Wall.jpg|Mount Wilbur (left) - Iceberg Peak - B-7 Pillar (right).

File:Iceberg Lake Trail.jpg|B-7 Pillar from Iceberg Lake Trail

File:Wilbur and B-7.jpg|Mount Wilbur (left) and B-7 Pillar (center) seen from Iceberg Lake Trail.

File:B-7 Pillar and Iceberg Peak.jpg|B-7 Pillar (left) and Iceberg Peak seen from the north at Helen Lake.

References

External links

B-7 Pillar rock climbing: [https://www.mountainproject.com/area/119285745/b-7-pillar Mountainproject.com]

Category:Mountains of Glacier County, Montana

Category:Mountains of Glacier National Park (U.S.)

Category:Lewis Range