ocr: HE BIG WAVE in the Colorado River's about our flipi in Crystal Rapids. The rapids are Crystal Rapids churns in place like part of my reason for being here. an occan breaker that doesn't Thave embarked on this voyage to experi- know where to go. The first four ence: a river altered by man's hand: Since 1963 dories of our flect have avoided it by hewing Glen Canyon Dam has been like a tourniquet to Crystal's relatively calm right flank. As we on the Colorado River, restricting the river's enter the rapids' tongue in Sequoia, boat- flow and changing its environment. Crystal man Martin Litton lose ...