Thielsen from the Highway Thielsen across Diamond Lake Thielsen through the Trees Climbing towards the SW Face Bailey across Diamond Lake View of Crater Lake Thielsen Summit Ridge Thielsen Summit Spire Starting the Descent Snowboarding Down the Face Skiing Below Lava Spires Skiing a Steep Chute Southwest Face of Thielsen Descending through the Trees Map of Thielsen Ski Route

This map shows our ascent and descent routes, with portions done on foot in red and on skis in blue. The long detour in the morning could easily have been avoided by using the map and compass, but we blindly followed the most prominent sets of tracks in the snow till they faded, and then later corrected our course. On the descent, we hiked west from the point where we hit the snowline, soon reaching the road a few hundred feet south of the trailhead.
(Map created with TOPO! ©1999 Wildflower Productions, www.topo.com)