Double black Crested Butte, CO
Rosy Lane drops 172 vertical feet over 357 feet of skiing, with a steepest pitch of 40° about 50 feet below the top. That's steeper than 71% of the 2,251 double black runs we've measured in North America, and the 68th steepest of 227 named runs at Crested Butte. It faces north.
Facing north at an average 30°, Rosy Lane gets about 45% of the winter sun that flat ground at Crested Butte does, December through March. That's shadier than 95% of the runs we've measured, and the 6th shadiest named run at Crested Butte. Its top sits at 10,790 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.