usgs

An outcrop of Catalina gneiss clearly displaying foliation, with two saguaro in the foreground.

next image return to main page

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/saguaro/>
Maintained by Webmaster, Menlo Park, CA
Last modified Tues 4/2/2003

 www.usa.gov: Your first click to the U.S. Government