Blue Sun Valley, ID
Christmas Lane drops 180 vertical feet over 2,075 feet of skiing, with a steepest pitch of 13° about 10 feet below the top. That's steeper than 7% of the 5,615 blue runs we've measured in North America, and the 94th steepest of 99 named runs at Sun Valley. It faces southeast.
Facing southeast at an average 5°, Christmas Lane gets about 117% of the winter sun that flat ground at Sun Valley does, December through March. That's sunnier than 85% of the runs we've measured, and the 9th sunniest named run at Sun Valley. Its top sits at 7,860 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.