Grand Canyon Groundwater with Richard Alley
Channel: Dutton Institute
Date: 2011-10-28

This video was created for Penn State's GEOSC 10 course (https://www.e-education.psu.edu/geosc10/) with the assistance of Richard Alley and the John A. Dutton e-Eduction Institute (https://www.e-education.psu.edu/)