Park Hours Park Hours Weather Check Weather Coordinates 40.089722, -93.673056 Park HoursFor temporary closures related to weather, stewardship activities and maintenance, as well as temporary trail closures, click here to visit our Park and Site Status Map. Park Grounds Sunrise to sunset, daily, year-round Park Office hoursTuesday after Labor Day until Friday before Memorial Day No formal office hours Friday before Memorial Day until the Tuesday after Labor Day 10 a.m. until 6 p.m., Fridays and Saturdays 1 p.m. until 6 p.m., Sundays
