Double black Big Sky, MT
Three Forks drops 1,454 vertical feet over 2,605 feet of skiing, with a steepest pitch of 49° about 1,150 feet below the top. That's steeper than 97% of the 2,251 double black runs we've measured in North America, and the 5th steepest of 290 named runs at Big Sky. It faces northeast.
Facing northeast at an average 35°, Three Forks gets about 52% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 91% of the runs we've measured, and the 29th shadiest named run at Big Sky. Its top sits at 10,180 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.