$5; $4 (ages 62+); $2 (ages 4-11). Buy tickets at the Acorn Shop in the barn.
Grounds daily 8 a.m.-dusk. Guided tours of the historic area Tues.-Sat. 11-5, Sun.-Mon. 1-5, May-Oct. Last tour begins 30 minutes before closing. Phone ahead to confirm special event schedule. Allow 1 hour minimum.