📍 1800 Piccard Drive, Rockville, MD 20850
Dog Park at Mattie J.T. Stepanek Park is a dog park at 1800 Piccard Drive, Rockville, MD 20850. It’s an official park on Atosworld — the neighborhood dog-park callboard where you rally your pack, see who’s heading over, and shout out when your dog’s on the way.