Frost Fire Park

Frost Fire Park is a modest alpine ski area and chairlift access Mountain Bike Park in the midwestern United States, in the Pembina River Gorge of northeastern North Dakota. Located in eastern Cavalier County, it is 7 miles west of Walhalla and six miles south of the international border with Canada.

Started in 1976, Frost Fire Park has one quad-seat chairlift and a magic carpet, with 7 runs, ski and snowboard rentals, certified ski and snowboard instructors, day lodge, and Howatt Hangar Bar and Grill. It does not offer tubing. It has an outdoor amphitheater, which hosts several plays and musicals during the summer. An "upside-down" area, the parking lot and lodge are near the top of the ski runs.

Source: Wikipedia