Robert Sibley Volcanic Regional Preserve - Volcanic Trail cul de sac

That's Mt Diablo...

Geological Marking #11. The Siesta Valley across Highway 24...

The following rock formations are at the end of the Volcanic Trail...

Trail: Overlook Trail - Round Top Loop Trail - Volcanic Trail (Loop Back) - Round Top Loop Trail - Bay Area Ridge Trail - Huckleberry Path Loop - Bay Area Ridge Trail - Overlook Trail

Total Distance: 7.75 miles

Next, going back to Round Top Loop Trail through Volcanic Trail...

Big thanks to East Bay Regional Park District and Bay Area Hiker


~~ CK