Double black (off-piste) Boreal, CA
Halfpipe drops 105 vertical feet over 479 feet of skiing, with a steepest pitch of 15° about 130 feet below the top. That's steeper than 2% of the 2,251 double black runs we've measured in North America, and the 56th steepest of 71 named runs at Boreal. It faces northwest.
Facing northwest at an average 13°, Halfpipe gets about 73% of the winter sun that flat ground at Boreal does, December through March. That's shadier than 66% of the runs we've measured, and the 20th shadiest named run at Boreal. Its top sits at 7,440 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.