Share Album Published August 26, 2019 Ptarmigan Tarn Trailhead: Bear Lake Via: Lake Helene Distance: 3.6 mi Elevation Change: 1,473' At Lake Helene, cross the outlet and follow the fairly well-defined trail along the west shore. As the trail rises it begins to fade and there are few cairns to mark the way. But route finding is not difficult, and there is little willow or krummholz to bar the way.