This year they will remain open through April 15, and right now they are still fully open with skiing and riding on all four mountains. With its nearly 900-foot vertical drop, four mountain peaks and over 75 runs, it's big time skiing for the Great Lakes Region. Looking out from the top of Moose Mountain, Lake Superior fills the top half of your view and the ski slopes the bottom half. You won't experience this anyplace else; Heartland, out west or east. It's truly unique.