Blue Terry Peak, SD
Black Moon drops 425 vertical feet over 1,558 feet of skiing, with a steepest pitch of 21° about 170 feet below the top. That's steeper than 48% of the 5,615 blue runs we've measured in North America, and the 16th steepest of 26 named runs at Terry Peak. It faces north.
Facing north at an average 16°, Black Moon gets about 55% of the winter sun that flat ground at Terry Peak does, December through March. That's shadier than 89% of the runs we've measured, and the 4th shadiest named run at Terry Peak. Its top sits at 6,670 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.