Blue Deer Valley, UT
Lost Boulder drops 879 vertical feet over 3,704 feet of skiing, with a steepest pitch of 23° about 2,450 feet below the top. That's steeper than 64% of the 5,615 blue runs we've measured in North America, and the 137th steepest of 224 named runs at Deer Valley. It faces north.
Facing north at an average 14°, Lost Boulder gets about 68% of the winter sun that flat ground at Deer Valley does, December through March. That's shadier than 74% of the runs we've measured, and the 52nd shadiest named run at Deer Valley. Its top sits at 9,040 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.