This is the Hell Fire ski trail at Whitefish Mountain Resort. This trail is the only groomed and intermediate run in Hellroaring Basin.
The Hell Fire isn't much of an intermediate trail. Its main function is to simply connec to the chairlift at the bottom and to mark the "outer boundary" of the Hellroaring Basin. Still, there's a few spots, like shown on the photo, that can be fun to ski on. Most of the rest of the trail, however, is pretty flat.