By Sandra Ketcham
The Grand Canyon is famous for its geological significance. At 277 miles long and as deep as 6,000 feet, it is the most remarkable example of arid-land erosion on Earth.
About the Author:
Sandra Ketcham is a writer with more than 15 years experience writing and editing for both print and online publications. She specializes in health, travel and parenting topics, and has articles published in regional, national and international print magazines, including "The Dollar Stretcher" and "Kraze." Ketcham is currently pursuing a degree in psychology.
