Blue Mountain High, CA
Borderline drops 281 vertical feet over 1,276 feet of skiing, with a steepest pitch of 20° about 30 feet below the top. That's steeper than 39% of the 5,615 blue runs we've measured in North America, and the 22nd steepest of 37 named runs at Mountain High. It faces north.
Facing north at an average 13°, Borderline gets about 74% of the winter sun that flat ground at Mountain High does, December through March. That's shadier than 64% of the runs we've measured, and the 18th shadiest named run at Mountain High. Its top sits at 7,910 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.