Blue Solitude, UT
Back Door drops 382 vertical feet over 1,899 feet of skiing, with a steepest pitch of 29° about 90 feet below the top. That's steeper than 95% of the 5,615 blue runs we've measured in North America, and the 46th steepest of 75 named runs at Solitude. It faces northeast.
Facing northeast at an average 12°, Back Door gets about 84% of the winter sun that flat ground at Solitude does, December through March. That's sunnier than 52% of the runs we've measured, and the 22nd sunniest named run at Solitude. Its top sits at 10,010 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.