Blue Keystone, CO
Gray's drops 651 vertical feet over 2,308 feet of skiing, with a steepest pitch of 20° about 750 feet below the top. That's steeper than 41% of the 5,615 blue runs we've measured in North America, and the 111th steepest of 140 named runs at Keystone. It faces west.
Facing west at an average 16°, Gray's gets about 94% of the winter sun that flat ground at Keystone does, December through March. That's sunnier than 66% of the runs we've measured, and the 50th sunniest named run at Keystone. Its top sits at 12,190 feet.
With little slope to hide behind, it takes nearly the full winter sun of open ground: powder settles and turns heavy sooner after a storm, and spring snow softens early. 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.