Hours: Site, visitor center and museum open Mon.-Sat. 9:30-5, Sun. 10:30-5, Apr.-Oct.; Mon.-Sat. 9:30-4:30, Sun. 10:30-4:30, rest of year. Mill tours are given on even hours and house tours are given on odd hours Mon.-Sat. 10-4, Sun. 11-4, Apr.-Oct.; Fri.-Sat. and holiday Mondays 10-3, Sun. 11-3, rest of year. Closed Jan. 1, Thanksgiving and Christmas. Phone ahead to confirm schedule. Allow 1 hour minimum.