$6 (per private vehicle); $5 (per private vehicle ages 63+). Self-guiding tour map $1.
Daily 9-5. Visitor center Tues.-Sun. 10-4, Mon. 11-3, July-Aug.; Tues.-Sun. 10-4, Mon. holiday 11-3, rest of year. Visitor center hours based on staff availability. Guided tours lasting 60 to 90 minutes are given Wed.-Sun. and Mon. holiday at 1, Sept.-June. Tours are not available during special events. Closed Jan. 1, Thanksgiving and Christmas.