If you're looking for a new ride check out this book. Rock Bridge consists of a diverse trail network, with difficulty ranging from grassland trails to technical single track. Hikers, bikers, and horseback riders will find the trails at Three Creeks worth visiting. This multi-use trail system winds around bluffs, crosses several small creeks, and offers a couple of challenging hills. Turn right at Deer Park Rd and follow the signs in.
Grindstone offers quick access to a great trail system for hikers and bikers.
You will find fairly technical single track, open field trails, and a couple of great bluff lookouts. It is also a multi-use area, with horseback riders, hikers, and bikers all utilizing the trails. Some portions of the loop are more rideable than others. Several climbs and great descents. Camping and water available at trail head.