Granite Peak Ski Resort is a ski area located in Rib Mountain State Park in the Town of Rib Mountain, Marathon County, Wisconsin, south of Wausau.

It features 58 runs and 4 terrain parks as of 2022 and boasts a vertical drop of 700 feet (213 m).

Granite Peak is the fourth tallest ski area in the Midwest, after Terry Peak (1,100) in the Black Hills , Mount Bohemia (900 ft.) in Michigan's Upper Peninsula and Lutsen Mountain (825 ft.) on Minnesota's north shore of Lake Superior.

Sun Valley in Idaho had become the nation's first ski resort in the western states in 1936.

Mountain biking, hiking and trails encircling the park are also in the plans for the future.