Turn left at the top of the canyon, and head onto the pavement at ParkRidge. Turn left on Skyline and hit the single track that's in the median. This part is really skinny and has a few surprises. When the median runs out, cut onto the fire road on the right. When you cross the next street, you can turn left into the Equastrian Center and turn right onto Goldenrod trail, or you can stay on the fire road.
Fire road is, well a fire road, straight and only one hill.
Goldenrod winds along the ridge. I rode the fire trail today, but usually take Goldenrod. Me, I bomb down Grass Valley Road and under the freeway to my house. That's a 5 mile downhill to end my ride.