Summary: In this Ranger Minute, Ranger Joseph Felgenhauer describes a simple way to remember how the Grand Canyon was shaped over time: D.U.D.E. (The letters stand for Deposition, Uplift, Down cutting and Erosion.) To download the transcript, go to this link: http://www.nps.gov/grca/photosmultimedia/upload/transc-RM200903dude.pdf
