How Old is the Grand Canyon?

Don't ask the National Park Service because they've been asked not to say. Apparently, our administration doesn't want to offend the creationists. They've even started selling a book at the Grand Canyon gift shop that suggests it was created by Noah's flood. Hard science at work. At the risk of offending my creationist readers, I'm going to go out on a limb here and say that Noah and the great flood had nothing to do with the creation of the Grand Canyon. Everyone knows it was Paul Bunyan and Babe the Blue Ox. Get a clue.