B-7 Pillar () is located in the
Lewis Range,
Glacier National Park in the
U.S. state of
Montana.
The summit is located just northeast of
Iceberg Peak
Iceberg Peak is a mountain located on Vancouver Island, British Columbia, Canada. Within the boundaries of Strathcona Provincial Park, this peak lies at the south end of Rees Ridge. Mount Celeste
Mount Celeste is the unofficial name for a mou ...
, and one-half mile east of the
Continental Divide
A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...
.
Climate
Based on the
Köppen climate classification, it is located in an alpine
subarctic climate
The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, ge ...
zone with long, cold, snowy winters, and cool to warm summers.
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
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...
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
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...
rocks thick, wide and long over younger rock of the
cretaceous period.
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.
See also
*
Mountains and mountain ranges of Glacier National Park (U.S.)
References
External links
* B-7 Pillar rock climbing
Mountainproject.com
Mountains of Glacier County, Montana
Mountains of Glacier National Park (U.S.)
Lewis Range
{{GlacierCountyMT-geo-stub