B-7 Pillar

B-7 Pillar
B-7 Pillar and Iceberg Notch
Highest point
Elevation	8,716 ft (2,657 m)[1]
Prominence	392 ft (119 m)[1]
Coordinates	48°49′20″N 113°45′10″W[1]
Geography
B-7 Pillar Location in Montana Show map of Montana B-7 Pillar Location in the United States Show map of the United States
Location	Glacier County, Montana, U.S.
Parent range	Lewis Range
Topo map	USGS Ahern Pass MT
Climbing
Easiest route	class 5 climbing

B-7 Pillar (8,716 feet (2,657 m)) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana.^[2] 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.^[3] 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 3 mi (4.8 km) thick, 50 miles (80 km) wide and 160 miles (260 km) long over younger rock of the cretaceous period.^[4]

Gallery

• 
  B-7 Pillar centered
• 
  B-7 Pillar right of center, Iceberg Peak to left
• 
  B-7 Pillar upper right, Iceberg Peak to left
• 
  B-7 Pillar, southeast face
• 
  Mount Wilbur (left) - Iceberg Peak - B-7 Pillar (right).
• 
  B-7 Pillar from Iceberg Lake Trail
• 
  Mount Wilbur (left) and B-7 Pillar (center) seen from Iceberg Lake Trail.
• 
  B-7 Pillar (left) and Iceberg Peak seen from the north at Helen Lake.

See also

• Mountains and mountain ranges of Glacier National Park (U.S.)

References

1. "B-7 Pillar, Montana". Peakbagger.com. Retrieved May 23, 2018.
2. Ahern Pass, MT (Map). TopoQwest (United States Geological Survey Maps). Retrieved May 23, 2018.
3. Peel, M. C.; Finlayson, B. L.; McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11 (5): 1633–1644. Bibcode:2007HESS...11.1633P. doi:10.5194/hess-11-1633-2007. ISSN 1027-5606. S2CID 9654551.
4. Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias". {{cite journal}}: Cite journal requires |journal= (help)

External links

• B-7 Pillar rock climbing: Mountainproject.com