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Sibley Volcanic Regional Preserve

July 08, 2012 by Bay Nature Staff

With a volcano at its heart, Sibley Preserve is an unparalleled place to see Coast Range geology exposed as well ...

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Citizens’ Domain in Napa

October 11, 2011 by Greg Retsinas

This park near downtown Napa has been run by volunteers for decades. A model for cash-strapped parks? Great views and extensive trails make it worth a visit to find out.

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When was the last volcanic eruption in the Bay Area? Where was it?

October 01, 2006 by Michael Ellis

You can easily visit the 10-million-year-old Sibley Volcano (see Voice of the Volcano, April-June 2005) in the hills above Oakland. ...

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