Many of the trails are excellent single track biking trails ranging from easy to difficult. The trails are very narrow, no wider than from pedal to pedal, and along some very steep cliffs and hillsides. Four different loops are connected by the Frontier Trail. Except for the Tower Climb, which contains eight uphill switchbacks, the New Melones area is a great place to ride year round. Beware that it does get hot in the summer. Try the Carson Creek trail (plus short peninsula loop), and Angels Creek Trail.
Other trails: Heron Point, Norwegian Gulch, Peoria Wildlife Area, and Table Mountain