Black diamond Alpine Meadows, CA
Art's Knob drops 269 vertical feet over feet of skiing, with a steepest pitch of 50°. That's steeper than 100% of the 4,740 black diamond runs we've measured in North America, and the 2nd steepest of 132 named runs at Alpine Meadows. It faces north.
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.