Ptarmigan Tunnel

Ptarmigan Tunnel
Location Glacier National Park, Glacier County, Montana, USA
Nearest city West Glacier, Montana
Coordinates 48°50′57″N 113°42′28″W / 48.84917°N 113.70778°W / 48.84917; -113.70778Coordinates: 48°50′57″N 113°42′28″W / 48.84917°N 113.70778°W / 48.84917; -113.70778
Built 1930
Architect Ole Westman
MPS Glacier National Park MRA
NRHP Reference # 86000360
Added to NRHP February 14, 1986[1]

The Ptarmigan Tunnel was built in 1930 through the Ptarmigan Wall at an elevation of 7,200 feet (2,200 m) in Glacier National Park, near Many Glacier. The 250-foot (76 m) tunnel allows hikers to avoid a strenuous climb over very steep terrain between Many Glacier and the Belly River valley. Two opposing steel jackhammers drilling from either side of the tunnel and a series of ten-hole rounds of dynamite gradually broke through the mountain in less than three months. A wide area, originally for guide and tourist horses, extends from each portal with a masonry retaining wall. Natural rock lines the interior walls. Heavy iron doors were hung across the tunnel adits during the summer of 1975. They remain open from mid-July until October 1, weather permitting. The 250 feet (76 m) long tunnel is a unique man-made feature in Glacier. This trail tunnel embodies exceptional qualities of landscape architecture and engineering in a pedestrian-scaled tunnel, cut through a sheer mountain wall. The portals frame spectacular views.[2]

References

Wikimedia Commons has media related to Ptarmigan tunnel.
  1. ↑ National Park Service (2008-04-15). "National Register Information System". National Register of Historic Places. National Park Service.
  2. ↑ "Ptarmigan Tunnel". List of Classified Structures. National Park Service. 2008-11-07.

See also


This article is issued from Wikipedia - version of the 11/27/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.