Hi Chessie! Welcom to NOVA !
I'm in Reston VA. I started a trail ride meetup: www.meetup.com/Wolf-Trap-Equestrians/ It's mostly free, BYOHorse style where anyone can "host" a trail ride. We are new so I'm trying to get more folks to show up on the rides. :)
Feel free to join and start a trailride! I need to meet more folks to ride consistently with! ...I trail ride several times a week, let me know if you are interested in riding. :)