Near Ptarmigan Tunnel Route
A view of Mount Wilbur from the Iceberg Lake / Ptarmigan Tunnel Trail.
Near Ptarmigan Tunnel Route
Switchbacking Ptarmigan Wall above Ptarmigan Lake near the tunnel. with permission from phil h
Near Ptarmigan Tunnel Route
View from inside tunnel

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Driving Directions
Hike Route

Ptarmigan Tunnel Route

4.7 (18 Ratings)
A hike up to a unique 250-foot tunnel through a sheer, rock wall with incredible views on each side.
10.6
mi
Distance
2,557
ft
Gain
strenuous
Difficulty
BirdingFall ColorsLakeViewsWaterfallWildflowersWildlife
Access Issues
Tunnel opens around July 17 each year. Bring bear spray.

Route Details

Flatter
Steeper
10.57mi
Distance
2,557ft
Elevation Gain
2,557ft
Elevation Loss
65%
Max Grade
7,257ft
High Point
4,959ft
Low Point
Path Type
There and Back
Description
The Ptarmigan Trail shares a trailhead as well as its first 2.7 miles with the Iceberg Lake Trail (both can be paired for a longer day). Although the first two-tenths of a mile climb at a fairly steep grade, the trail quickly flattens out, becoming a nice, gradual incline taking you to broad meadows. Keep an eye on the meadows along the slopes above and below the trail, as this area is frequented by bighorn sheep and grizzlies. Occasionally, you can see mountain goats in the rockier cliffs higher up. The trail heads into the forest with scattered views as you go by Ptarmigan Falls at mile 2.6, which you can see through the vegetation. The Iceberg Lake Trail splits off just after Ptarmigan Falls. The trail continues and gets steep once again. Huckleberries are plentiful here, and black bears are not uncommon, so be prepared. At a little over 1.6 miles from the junction, you'll reach Ptarmigan Lake. You'll see the two switchbacks up on the slope to the tunnel. There is definitely more than a little work ahead of you, but once you reach the tunnel it will all be worth it.The views looking back down the drainage over the lake are fantastic. The views on the other side of the tunnel are even more breathtaking. The trail on the other side was hewn from the red rocks and offers staggering views onto Elizabeth Lake and the Belly River drainage. It's time to turn around, enjoy the views looking into Many Glacier, and drop back down to your vehicle.This content was created by Jake Bramante of Hike 734. Visit www.hike734.com for more expert Glacier content and maps that help you decide which trail to hike.

Route Conditions

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Contributors
Jake Bramante