Blue Mad River Glen, VT
Porcupine drops 608 vertical feet over 2,268 feet of skiing, with a steepest pitch of 28° about 70 feet below the top. That's steeper than 92% of the 5,615 blue runs we've measured in North America, and the 17th steepest of 60 named runs at Mad River Glen. It faces east.
Facing east at an average 16°, Porcupine gets about 90% of the winter sun that flat ground at Mad River Glen does, December through March. That's sunnier than 60% of the runs we've measured, and the 24th sunniest named run at Mad River Glen. Its top sits at 2,560 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.