Butterfly Spring: Bay Area Ridge Trail and Quarry Trail

SIBLEY REGIONAL VOLCANIC PRESERVE (OLD TUNNEL ROAD STAGING AREA): Meet at Sibley Regional Volcanic Preserve’s Old Tunnel Road Staging Area. We start by climbing out of the oaks and willows of Round Top Creek and then circle around the volcanic ridges and basalt quarries of the high ridge. About 4 miles with about 800 feet of elevation gain.

Bring liquids and snacks.

Ages 9 and up.

Bring hydration and snacks.

$5 parking fee may apply.