31 min
The Diablo Ranch Trail is one of the few legal singletrack trails in Mt. Diablo State Park. It is a windy, up and down trail that is generally covered in a bit of loose gravel.<br><br>You can do the trail in either direction. From the top, access Diablo Ranch Road from Angel Kerley Rd. From the bottom, start at the parking lot just across from Diablo Ranch.