Take a left at the first chance. Road is bumpy so go slow. All the way to the end. Park and Ride. The uphill is smooth and rolling, and leads you up to a sweet lake.
Views are incredible the whole way.
Downhill, one of the best. Rollers, jumps, and a few streams. Like it was said before though. Be aware that this is a popular trail and respect the others. She's fast and fun.