USGS - science for a changing world

Geology of National Parks, 3D and Photographic Tours

Pinnacles National Monument
Rounded knobs and pinnacles (spires of rock) rise above the headwater area of Condor Gulch. Spheroidal weathering of the volcanic rock gives rise to this unique landscape.
Next Image Return to Main Page

Accessibility FOIA Privacy Policies and Notices logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Education Webmaster
Page Last Modified: 03-May-2017@08:55