7 AM (8 AM weekends/holidays) to ½ hr after sunset
Surface
Grass / dirt
Parking & access
Park lot off Old Lee Rd at Rock Hill District Park.
Good to know
Big capacity (about 80 large dogs and 10 small dogs) with a separate small-dog enclosure.
Open 7 AM weekdays / 8 AM weekends & federal holidays, until one half-hour after sunset.
Free; use of off-leash dog areas is at your own risk (Fairfax County Park Authority).
About Rock Hill District Park Dog Park
Rock Hill District Park Dog Park is a free fenced dog park in Chantilly, District of Columbia where dogs are off-leash year-round. It's fully fenced, with a drinking fountain on site. Size: Large — 90-dog capacity.