National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service:  U.S. Department of the InteriorNational Park Service Arrowhead
Pinnacles National Monument A view of the High Peaks
view map
text size: largest larger normal
printer friendly
Pinnacles National Monument
Lead and California Condors

You are exiting the National Park Service website

Thank you for visiting our site.

You will now be redirected to:

We hope your visit was informative and enjoyable.

A close-up view of rhyolite breccia

Did You Know?
Rhyolitic breccia is the rock that the High Peaks and other rock formations at Pinnacles are made of. Rhyolite breccia is composed of lava sand, ash, and angular chunks of rock that were explosively ejected from the Pinnacles Volcano.

Last Updated: July 25, 2006 at 00:22 MST