Black diamond Silver Star, BC
Bon Diablo drops 1,086 vertical feet over 3,160 feet of skiing. It faces northeast.
Facing northeast at an average 20°, Bon Diablo gets about 45% of the winter sun that flat ground at Silver Star does, December through March. That's shadier than 95% of the runs we've measured, and the 26th shadiest named run at Silver Star. Its top sits at 5,260 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 30-meter elevation data from Natural Resources Canada, too coarse to measure steepness. 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.