Toothpaste Rocks - Grand Canyon National Park
Channel: Dutton Institute
Date: 28/10/2011

This video was created for Penn State's GEOSC 010  course (https://www.e-education.psu.edu/geosc10/) with the assistance of Richard Alley, Sridhar Anandakrishnan and the John A. Dutton e-Education Institute (https://www.e-education.psu.edu/).