Double black (extreme) Big Sky, MT
Great Falls drops 1,003 vertical feet over 2,520 feet of skiing, with a steepest pitch of 42° about 950 feet below the top. That's steeper than 80% of the 2,251 double black runs we've measured in North America, and the 31st steepest of 290 named runs at Big Sky. It faces north.
Facing north at an average 25°, Great Falls gets about 36% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 99% of the runs we've measured, and the 10th shadiest named run at Big Sky. Its top sits at 10,440 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.