Black diamond Big Sky, MT
Lower Trapline drops 234 vertical feet over 1,566 feet of skiing, with a steepest pitch of 15° about 490 feet below the top. That's steeper than 2% of the 4,740 black diamond runs we've measured in North America, and the 271st steepest of 290 named runs at Big Sky. It faces north.
Facing north at an average 9°, Lower Trapline gets about 80% of the winter sun that flat ground at Big Sky does, December through March. That's shadier than 55% of the runs we've measured, and the 128th shadiest named run at Big Sky. Its top sits at 7,610 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.