By Peggy Deland
The 277-mile-long Grand Canyon has an average depth of 4,000 feet. At its deepest, it extends 6,000 feet--more than a mile--into the earth.
About the Author:
Peggy Deland has been a writer and editor since 2007. Her articles appear on a variety of websites, including Life Unplugged and ConsumerSearch. Deland specializes in topics such as health, aviculture, science, green living and travel.
