2021 Fountainhead Half Marathon & 10K trail race produced by EX2 Adventures. Fountainhead Regional Park, Fairfax Station, VA. Saturday, 23 May 2021. Photo by Brian W. Knight/Swim Bike Run Photo. #RaceWithEX2 #running #trailrunning #runmoretrails #varunner #runva #FountainheadHalfMarathon