Green Buttermilk, CO
Oregon Trail (To Tiehack) drops 301 vertical feet over 4,651 feet of skiing, with a steepest pitch of 23° about 1,100 feet below the top. That's steeper than 96% of the 3,109 green runs we've measured in North America, and the 10th steepest of 41 named runs at Buttermilk. It faces east.
Facing east at an average 5°, Oregon Trail (To Tiehack) gets about 86% of the winter sun that flat ground at Buttermilk does, December through March. That's sunnier than 55% of the runs we've measured, and the 10th sunniest named run at Buttermilk. Its top sits at 8,350 feet.
It gets an ordinary dose of sun: powder lasts a typical amount of time, and spring snow softens on a normal schedule. 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 USGS lidar (1-meter where it exists, coarser elsewhere). 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.