Black diamond Sunlight Mountain, CO
Primo drops 826 vertical feet over 2,354 feet of skiing, with a steepest pitch of 30° about 1,090 feet below the top. That's steeper than 58% of the 4,740 black diamond runs we've measured in North America, and the 24th steepest of 69 named runs at Sunlight Mountain. It faces northeast.
Facing northeast at an average 21°, Primo gets about 55% of the winter sun that flat ground at Sunlight Mountain does, December through March. That's shadier than 90% of the runs we've measured, and the 20th shadiest named run at Sunlight Mountain. Its top sits at 9,790 feet.
Shaded snow stays colder and drier, so it holds powder longer after a storm and is slower to crust over or turn to slush in spring. 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.