Split Mountain (Montana)

Split Mountain (8,797 feet (2,681 m)) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana.^[4]

Split Mountain
Southeast aspect, from Triple Divide Pass
Highest point
Elevation	8,797 ft (2,681 m)[1]
Prominence	1,272 ft (388 m)[1]
Parent peak	Norris Mountain (8,882 ft)[2]
Isolation	1.50 mi (2.41 km)[2]
Coordinates	48°35′53″N 113°32′21″W[3]
Geography
Split Mountain Location in Montana Show map of Montana Split Mountain Location in the United States Show map of the United States
Location	Glacier National Park Glacier County, Montana, U.S.
Parent range	Lewis Range
Topo map(s)	USGS Mount Stimson, MT
Climbing
First ascent	1956[1]
Easiest route	class 5+[2]

Geology

Like other mountains in Glacier National Park, Split Mountain 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.^[5]

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.^[6] Temperatures can drop below −10 °F with wind chill factors below −30 °F.

Gallery

• 
  Norris Mountain (left) and Split Mountain (right) from Saint Mary Lake
• 
  Split Mountain seen from the north at Saint Mary Lake
• 
  Lower Saint Mary Lake with Split Mountain centered. (see file annotations)
• 
  Aerial view, southwest aspect. circa 1925

See also

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