Robert Sibley Volcanic Regional Preserve - Back to Round Top Loop Trail

Retracing Round Top Loop Trail...

Geological Marking #4. This is a wall of mudstones. It is close to, or was in, the wall of the volcano.

Geological marking #5. Quarry pit of massive basalt surrounded by walls of lava.

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, continuing at Round Top Loop Trail...

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


~~ CK