The Grand Canyon Nope. While this huge gorge in northern Arizona does have the Colorado River running through it—which is 1.6 kilometers (1 mile) deep and 321.8 kilometers (200 miles) long—that's just a "drop in the bucket" of the world's fresh water. Try again. Stories in the Ice | Antarctic Almanac | Water World | Live and Breathe Antarctica Teacher's Guide | Resources | Transcript Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print PBS Online | NOVA Online | WGBH © | Updated November 2000