Black diamond Lookout Pass, ID
Purgatory drops 800 vertical feet over 1,822 feet of skiing, with a steepest pitch of 33° about 1,540 feet below the top. That's steeper than 73% of the 4,740 black diamond runs we've measured in North America, and the 1st steepest of 49 named runs at Lookout Pass. It faces north.
Facing north at an average 26°, Purgatory gets about 40% of the winter sun that flat ground at Lookout Pass does, December through March. That's shadier than 98% of the runs we've measured, and the 2nd shadiest named run at Lookout Pass. Its top sits at 5,330 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.