Mad River Mountain is a ski and snowboard resort in Valley Hi, Ohio, with an elevation of 1,460 feet and a vertical drop of 300 feet. It offers 20 trails across 144 acres, with a lift system of 11. The resort has a base elevation of 1,160 feet and is open from mid-December to mid-March. Mad River Mountain is Ohio's largest ski resort, providing a range of skiing and snowboarding opportunities for all skill levels.