Green Sun Valley, ID
Roundhouse Slope drops 252 vertical feet over 1,045 feet of skiing, with a steepest pitch of 23° about 420 feet below the top. That's steeper than 96% of the 3,109 green runs we've measured in North America, and the 76th steepest of 99 named runs at Sun Valley. It faces east.
Facing east at an average 14°, Roundhouse Slope gets about 100% of the winter sun that flat ground at Sun Valley does, December through March. That's sunnier than 71% of the runs we've measured, and the 20th sunniest named run at Sun Valley. Its top sits at 7,700 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.