Black diamond Copper, CO
Union Peak drops 667 vertical feet over 1,877 feet of skiing, with a steepest pitch of 40° about 70 feet below the top. That's steeper than 95% of the 4,740 black diamond runs we've measured in North America, and the 5th steepest of 141 named runs at Copper. It faces northeast.
Facing northeast at an average 21°, Union Peak gets about 64% of the winter sun that flat ground at Copper does, December through March. That's shadier than 80% of the runs we've measured, and the 17th shadiest named run at Copper. Its top sits at 12,280 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.