Black diamond Pebble Creek, ID
Upper Al's drops 247 vertical feet over 534 feet of skiing, with a steepest pitch of 31° about 10 feet below the top. That's steeper than 66% of the 4,740 black diamond runs we've measured in North America, and the 11th steepest of 46 named runs at Pebble Creek. It faces northwest.
Facing northwest at an average 28°, Upper Al's gets about 54% of the winter sun that flat ground at Pebble Creek does, December through March. That's shadier than 90% of the runs we've measured, and the 13th shadiest named run at Pebble Creek. Its top sits at 8,030 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.