The Grand Canyon begins at Lees Ferry and ends at the Grand Wash Cliffs. The Colorado River carves the Grand Canyon from the Rocky Mountains of Colorado to the Gulf of California in Mexico. The Colorado River flowing through the Grand Canyon is surely beauty to the eye and is visited on numerous occasions to hunt and to enjoy the scenery. The river is known for its dramatic canyons and whitewater rapids, the Colorado is a vital source of water for agricultural and urban areas in the southwestern desert lands of North America. It waters our deserts.