Discovery The Grand Canyon Explained Scott Admin posted on 3 years ago — updated on 1 second ago 417 views The Grand Canyon is nearly 300 miles long and over a mile deep. You could stack four Empire State buildings one on top of the other and they still wouldn't reach the lip of the Canyon. https://www.youtube.com/watch?v=LaxaE7tcwu4 history earth The Grand Canyon Scott Follow Author, educator, musician, dancer and all around creative type. Founder of "The Happy Now" website and the online jewelry store "Silver and Sage".