Rivers wind through earth, cutting down and eroding the soil for
millions of years, creating a cavity in the ground 277 miles
long, 18 miles wide, and more than a mile deep known as the Grand
Home to an astonishing variety of plants and animals that have
lived and evolved within its walls for millennia, the Grand
Canyon is much more than just a hole in the ground. Follow a
father and daughter as they make their way through... more...