Sibley Volcanic Regional Preserve

Oakland, California

Sibley Volcanic Regional Preserve Professional Review and Guide

"What do the Sibley Volcanic Regional Preserve and Mount Saint Helens have in common? The subduction process that caused a volcanic explosion here ten million years ago eventually moved northward to cause the eruption of Washington’s Mount Saint Helens. Hiking among Monterey pines and on open grassy hills, you will see walls of the caldera left by the ancient blast, old river gravels, basalt lava flows, and varicolored “redbeds,” layers of oxidized iron explored worldwide for fossils. More recently, enthusiastic hikers have built a series of rock mazes in the preserve’s old quarries, complete with altars. Trails Surface: Mostly well-packed dirt trail that varies in width but with some loose gravel; finish on a paved path."

Sibley Volcanic Regional Preserve Reviews

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8/28/2010
This was a decent trail. Not very strenuous, except for a brief portion. Interesting for geology buffs. Great for dog-walkers. Not very crowded. The views were unremarkable, although there is an amazing view on the road just before you reach the Preserve.
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Trail Information

Oakland
Nearby City
3.2
Distance
Loop/Lollipop
Trail Type
Easy to Moderate
Skill Level
2 hours
Duration
Open daily year-round
Season
Sibley Volcanic Regional Preserve
Local Contacts
USGS Oakland East
Local Maps
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Activity Feed

Jun 2018