Black diamond Alta, UT
Annie's drops 424 vertical feet over 733 feet of skiing, with a steepest pitch of 39° about 240 feet below the top. That's steeper than 94% of the 4,740 black diamond runs we've measured in North America, and the 38th steepest of 117 named runs at Alta. It faces west.
Facing west at an average 35°, Annie's gets about 80% of the winter sun that flat ground at Alta does, December through March. That's shadier than 56% of the runs we've measured, and the 57th shadiest named run at Alta. Its top sits at 9,980 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 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.