Black diamond Crystal Mountain, WA
Upper Sluiceway drops 222 vertical feet over 567 feet of skiing, with a steepest pitch of 38° about 30 feet below the top. That's steeper than 93% of the 4,740 black diamond runs we've measured in North America, and the 48th steepest of 133 named runs at Crystal Mountain. It faces southeast.
Facing southeast at an average 24°, Upper Sluiceway gets about 131% of the winter sun that flat ground at Crystal Mountain does, December through March. That's sunnier than 93% of the runs we've measured, and the 32nd sunniest named run at Crystal Mountain. Its top sits at 5,810 feet.
Angled toward the low winter sun, it bakes: powder turns heavy soon after a storm, and in spring it softens early in the day and refreezes hard overnight. 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.