This view is looking down from the Tunnel Trail into the narrow gorges and crevasses formed along the fractures in the volcanic rock. The layers of volcanic material are dipping steeply to the right.
U.S. Department of the Interior - U.S. Geological Survey - Geology Discipline Privacy statement -- General disclaimer -- Accessibility This page is <http://3dparks.wr.usgs.gov/Pinnacles/> Maintained by Webmaster, Menlo Park, CA Last modified Mon 3/18/2003