Blue Crested Butte, CO
Upper Ruby Chief drops 431 vertical feet over 1,690 feet of skiing, with a steepest pitch of 30° about 380 feet below the top. That's steeper than 96% of the 5,615 blue runs we've measured in North America, and the 140th steepest of 227 named runs at Crested Butte. It faces north.
Facing north at an average 15°, Upper Ruby Chief gets about 64% of the winter sun that flat ground at Crested Butte does, December through March. That's shadier than 79% of the runs we've measured, and the 26th shadiest named run at Crested Butte. Its top sits at 11,110 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.