Office and building hours: 11 a.m. - 4 p.m., Wednesday through Monday. Closed Tuesdays.
Park grounds are open dawn to dusk daily.
Hourly tours begin at 11 a.m. except when school field trips are on site. Public tours begin at 1 p.m. on days that host school field trips. Last tour departs at 3 p.m.
Sign up for tours at the park's General Store.
Grinding demonstrations are noon to 3 p.m. on the first and third Sundays of the month, April through October. Call ahead to confirm that conditions permit grinding. 703-759-2771
12000 Government Center Pkwy
Fairfax, VA 22035