Black diamond Ski Mystic Deer Mountain, SD
Dark Matter drops 216 vertical feet over 772 feet of skiing, with a steepest pitch of 24° about 260 feet below the top. That's steeper than 20% of the 4,740 black diamond runs we've measured in North America, and the 11th steepest of 52 named runs at Ski Mystic Deer Mountain. It faces east.
Facing east at an average 17°, Dark Matter gets about 106% of the winter sun that flat ground at Ski Mystic Deer Mountain does, December through March. That's sunnier than 77% of the runs we've measured, and the 13th sunniest named run at Ski Mystic Deer Mountain. Its top sits at 6,430 feet.
Angled toward the low winter sun, it bakes: powder turns heavy soon after a storm, and in spring it softens early in the day and refreezes hard overnight. 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.