Click here for information on how to reserve a picnic shelter. Park Hours Park Hours Weather Check Weather Coordinates 37.620556, -90.638056 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. Historic Site Grounds: Sunrise to sunset, year-round Visitor Center hours(Free tours are offered during these times.) Nov. 1 through April 15 10 a.m. to 4 p.m., Friday, Saturday and Sunday Closed Monday through Thursday Historic Site Office hoursNov. 1 through April 15 8 a.m. to 4:30 p.m., Wednesday through Sunday