How Does A Canyon Become Grand?
How Does A Canyon Become Grand? Be Smart
How do you make a Grand Canyon? I was in Arizona recently for Phoenix Comic-Con, and had the amazing pleasure of seeing one of Earth's greatest natural wonders the Grand Canyon. More than a mile deep, and several miles across, it just defies belief. But I couldn't help but think, the Colorado River down at the bottom isn't that big. How did it cut a canyon so massive? How old is the Grand Canyon?
About the Program
Be Smart
Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.
Here’s your ticket to stream.
Stream the best of public television on demand with GPB Passport: MASTERPIECE dramas and mysteries, NOVA, Ken Burns documentaries, Finding Your Roots and more. Binge full seasons, get early access to new episodes before they air on television and catch up on programs you missed with this powerful donor benefit from GPB!
