Double black (extreme) Big Sky, MT
6th Gully drops 580 vertical feet over 861 feet of skiing, with a steepest pitch of 48° about 370 feet below the top. That's steeper than 95% of the 2,251 double black runs we've measured in North America, and the 10th steepest of 290 named runs at Big Sky. It faces northeast.
Facing northeast at an average 43°, 6th Gully gets about 54% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 90% of the runs we've measured, and the 33rd shadiest named run at Big Sky. Its top sits at 10,280 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.