“A segment of regional trail connecting Sibley Volcanic Regional Preserve parking lot on Skyline Blvd with Old Tunnel Rd.
— Tom Robson
This is the segment of East Bay Skyline Regional Trail and Bay Area Ridge Trail
in Sibley Volcanic Regional Preserve that connects the Preserve parking area on Skyline Blvd and Old Tunnel Road. There is free parking at both ends of this segment. This is a shaded trail that descends steeply from Skyline Blvd to Old Tunnel Road.