Blue Sun Valley, ID
Lower Janss Pass drops 500 vertical feet over 1,369 feet of skiing, with a steepest pitch of 30° about 490 feet below the top. That's steeper than 96% of the 5,615 blue runs we've measured in North America, and the 32nd steepest of 99 named runs at Sun Valley. It faces northeast.
Facing northeast at an average 22°, Lower Janss Pass gets about 63% of the winter sun that flat ground at Sun Valley does, December through March. That's shadier than 81% of the runs we've measured, and the 50th shadiest named run at Sun Valley. Its top sits at 7,250 feet.
Shaded snow stays colder and drier, so it holds powder longer after a storm and is slower to crust over or turn to slush in spring. Shading from ridges and trees isn't counted yet.
under 25°25–35°35–45°45°+ Hover to follow the line on the map.
Measured by ZRankings from 1-meter USGS lidar. Steepest pitch is the steepest stretch of about 50 vertical feet along the skiable line. Run lines come from OpenStreetMap and can sit a little off the skied path.