North Fork Trail gets heavy moto use so you'll find sections that are rutted, trenched, or rocky. Overall, however, it its still nice to run.
The trail starts one mile up Lone Pine Trail
on the left. The first 3.25 miles of the trail has gentle but variable graded terrain with a series of short climbs and descents. The remainder of the trail gets steeper and pretty consistently heads upward. The trail ends at the upper intersection with the Lone Pine Trail
You'll see two other intersections along the trail. Just after the two-mile point on the right is the Short Line Trail
that connects to the midpoint of Lone Pine Trail
. At the three-mile point on the left is the intersection with Milepost 1 Trail, another singletrack open to motos.