Blue Boyne Mountain, MI
Thunder drops 159 vertical feet over 780 feet of skiing, with a steepest pitch of 17° about 90 feet below the top. That's steeper than 22% of the 5,615 blue runs we've measured in North America, and the 26th steepest of 61 named runs at Boyne Mountain. It faces northeast.
Facing northeast at an average 12°, Thunder gets about 77% of the winter sun that flat ground at Boyne Mountain does, December through March. That's shadier than 59% of the runs we've measured, and the 13th shadiest named run at Boyne Mountain. Its top sits at 940 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.