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Pinnacles NM | Bear Gulch

WI_ca086.jpg

The formations giving the name to this national monument (later upgraded to a national park) are made up of rhyolithic and andesitic rocks going back to an ancient volcano ripped apart by tectonic movements along the San Andreas Fault.

Location
View on OpenStreetMap
Created
on Friday 5 October 2007 by Martin Mergili
Visits and license
4196 visits, CC BY-NC-SA 4.0 DEED license