Green Kelly Canyon, ID
Boundary drops 339 vertical feet over 5,399 feet of skiing, with a steepest pitch of 8° about 5,370 feet below the top. That's steeper than 9% of the 3,109 green runs we've measured in North America, and the 48th steepest of 49 named runs at Kelly Canyon. It faces southwest.
Facing southwest at an average 4°, Boundary gets about 112% of the winter sun that flat ground at Kelly Canyon does, December through March. That's sunnier than 81% of the runs we've measured, and the 5th sunniest named run at Kelly Canyon. Its top sits at 6,230 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.