Black diamond Big Sky, MT
Flyrock Gully drops 190 vertical feet over 956 feet of skiing, with a steepest pitch of 23° about 690 feet below the top. That's steeper than 16% of the 4,740 black diamond runs we've measured in North America, and the 191st steepest of 290 named runs at Big Sky. It faces northeast.
Facing northeast at an average 12°, Flyrock Gully gets about 72% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 68% of the runs we've measured, and the 90th shadiest named run at Big Sky. Its top sits at 7,970 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.