Black diamond Afton Alps, MN
Rosie's Run drops 230 vertical feet over 1,360 feet of skiing, with a steepest pitch of 20° about 700 feet below the top. That's steeper than 7% of the 4,740 black diamond runs we've measured in North America, and the 10th steepest of 39 named runs at Afton Alps. It faces east.
Facing east at an average 10°, Rosie's Run gets about 107% of the winter sun that flat ground at Afton Alps does, December through March. That's sunnier than 78% of the runs we've measured, and the 10th sunniest named run at Afton Alps. Its top sits at 980 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.