Black diamond Loon Mountain, NH
Upper Flume drops 622 vertical feet over 1,765 feet of skiing, with a steepest pitch of 30° about 750 feet below the top. That's steeper than 60% of the 4,740 black diamond runs we've measured in North America, and the 3rd steepest of 76 named runs at Loon Mountain. It faces north.
Facing north at an average 21°, Upper Flume gets about 45% of the winter sun that flat ground at Loon Mountain does, December through March. That's shadier than 96% of the runs we've measured, and the 3rd shadiest named run at Loon Mountain. Its top sits at 3,040 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.