(includes all McConkey's Ferry section sites as well as Bowman's Hill Tower and Thompson-Neely Farmstead in the Thompson's Mill Section) $11; $6 (ages 4-11); free (active military with ID). McConkey's Ferry Section only, $6 each site. Additional fees may be charged for special events.
Tours daily 10:30-3:30, mid-Mar. through Dec. 31; Sat.-Sun. 10:30-3:30, rest of year. Last tour begins at closing. Closed some holidays. Phone ahead to confirm schedule.