Fountainhead Regional Park Professional Review and Guide
"This ride's general location is 10 miles south of Fairfax, Virginia, in the Washington, D.C., suburbs. Scenery includes pretty woods and glimpses of Lake Occoquan. This single-track trail (a series of loops and connecting routes) was designed by mountain bikers who love challenging riding. With lots of short, steep climbs; stream crossings; plenty of downed trees and deadfall; and twists and turns that will keep your eyes firmly fixed to the trail, it's not a trail for novices. While not especially technical or rocky by Appalachian standards, the trail is still a nonstop succession of climbs, drops, turns, and obstacles that will plant a grin on the faces of intermediate and advanced riders.
The narrow, mostly soft dirt trail passes through a lovely second-growth pine and hardwood forest. When not plunging through small stream valleys, the trail follows narrow ridges leading out to the shores of Lake Occoquan. The lake views are gorgeous and the entire trail system is located in a chunk of forest that imparts a felling of remoteness unusual in D.C.'s suburban sprawl. The trail doesn't pass any paved roads or private residences; the scenery is all woods and water."