Black diamond Mammoth, CA
Rooster Tail drops 176 vertical feet over 469 feet of skiing, with a steepest pitch of 32° about 120 feet below the top. That's steeper than 70% of the 4,740 black diamond runs we've measured in North America, and the 45th steepest of 151 named runs at Mammoth. It faces east.
Facing east at an average 23°, Rooster Tail gets about 115% of the winter sun that flat ground at Mammoth does, December through March. That's sunnier than 83% of the runs we've measured, and the 3rd sunniest named run at Mammoth. Its top sits at 10,450 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.