Black diamond Aspen Mountain, CO
Percy drops 334 vertical feet over 1,070 feet of skiing, with a steepest pitch of 35° about 350 feet below the top. That's steeper than 86% of the 4,740 black diamond runs we've measured in North America, and the 50th steepest of 139 named runs at Aspen Mountain. It faces east.
Facing east at an average 20°, Percy gets about 96% of the winter sun that flat ground at Aspen Mountain does, December through March. That's sunnier than 68% of the runs we've measured, and the 8th sunniest named run at Aspen Mountain. Its top sits at 10,690 feet.
With little slope to hide behind, it takes nearly the full winter sun of open ground: powder settles and turns heavy sooner after a storm, and spring snow softens early. 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.