The short 0.42-mile-long Pond Trail in the Sibley Volcanic Regional Preserve is a dead-end trail. The “dead-end” consists of little ponds, which are not dead at all. They are thriving with aquatic life.
The ponds are located east from where the Bay Area Ridge Trail follows Round Top Creek parallel to Old Tunnel Road. From the parking area next to Old Tunnel Road, one can ascend Quarry Road (no motorized traffic) for about half a mile and then turn left onto Pond Trail to descend to the ponds. The Pond Trail/Quarry Road junction is found near the lower end of the Quarry Road segment between Quarry Road's junction with Quarry Trail and Volcanic Trail. A hike or ride from Sibley's main entrance and visitor center via these upper ridge trails will add up to a distance of about two miles. Less, when taking Quarry Trail. More, when taking Volcanic Trail and/or the longer half-loop of Round Top Loop Trail.
Keywords: hiking, mountain biking, equestrian, network of trails, Berkeley-Oakland hills, East Bay, California.