title: Wynn Mountain
text: # Wynn Mountain
  
  Wynn Mountain (8,409 feet (2,563 m)) is located in the Lewis Range of Glacier National Park, in the U.S. state of Montana. Wynn Mountain rises above the south shores of Lake Sherburne. The mountain is named for Frank B. Wynn, physician and scientist who was killed while attempting to climb nearby Mount Siyeh on July 27, 1927.
  
  ## Geology
  
  Like other mountains in Glacier National Park, the peak 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.
  
  ## Climate
  
  Based on the Köppen climate classification, the peak is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers. Temperatures can drop below −10 °F with wind chill factors below −30 °F.
  
  