“An alternative doubletrack trail to enter Chino Hills State Park.
— Curtis Pflaumer
This is an alternative entrance into Chino Hills State Park, coming from Green River Rd. The trail is moderately steep, with lots of tumbleweeds/overgrowth which is the reason for the 3 star rating. The trail is mostly climbing with a couple downhills. Great views of the Chino Hills State Park, Orange County, etc. This trail also gives access to the many trails within the park.
To access, exit Green River Rd, head north and park at the Santa Ana River Trail area. Ride on the unnamed road up to the golf course clubhouse, and ride on by. Cross the railroad tracks either through the fence or on the trail to the left of the fence if the fence is closed. After crossing the tracks, take the trailhead which is to the left. Go around the gate on the hiking/bike entrance and begin your climb. Stay right at the fork shortly after the start; it is just a short paved maintenance road.
The northern terminus of the trail can be easily accessed by campers at Chino Hills State Park Rolling M Ranch campsite via Lower Alison Trail.