Black diamond Lost Trail, MT
South Face drops 518 vertical feet over 1,705 feet of skiing, with a steepest pitch of 31° about 680 feet below the top. That's steeper than 63% of the 4,740 black diamond runs we've measured in North America, and the 20th steepest of 67 named runs at Lost Trail. It faces east.
Facing east at an average 18°, South Face gets about 99% of the winter sun that flat ground at Lost Trail does, December through March. That's sunnier than 70% of the runs we've measured, and the 36th sunniest named run at Lost Trail. Its top sits at 7,710 feet.
With little slope to hide behind, it takes nearly the full winter sun of open ground: powder settles and turns heavy sooner after a storm, and spring snow softens early. 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.