Visitor Center Winter Hours (December, January and February): Open 11 a.m. - 4 p.m. Closed Tuesdays.
Park grounds are open dawn to dusk daily.
Visitor Center (March through November): Open Weekdays: 9 a.m. - 5 p.m. Weekends: Noon - 5 p.m. Closed Tuesdays.
For further information about parks and permits, call 703-324-8516.
12000 Government Center Pkwy
Fairfax, VA 22035