Double black Big Sky, MT
1st Gully drops 695 vertical feet over 1,115 feet of skiing, with a steepest pitch of 46° about 690 feet below the top. That's steeper than 92% of the 2,251 double black runs we've measured in North America, and the 16th steepest of 290 named runs at Big Sky. It faces east.
Facing east at an average 39°, 1st Gully gets about 83% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 50% of the runs we've measured, and the 143rd shadiest named run at Big Sky. Its top sits at 10,440 feet.
It gets an ordinary dose of sun: powder lasts a typical amount of time, and spring snow softens on a normal schedule. 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.