Follow the blue blazes (diamonds) down to Peterson Lake instead of the packed trail that leads to creek skiing and bush whacking. They divert below the steepest hill ~1/2 mile after making the turn away from Auke Mountain. The 2 miles of forest trail below Peterson Lake are too thin for reasonable skiing, but the last 2 miles from the meadow down the railroad grade to the trailhead is surprisingly skiable. Thanks to Trail Mix for improving the trail.