Home / More 360 panos     Pictures of Grand Canyon National Park Colorado River at Redbud Alcove, Grand Canyon National Park
 Descending some of the 277 miles (446km) of the Colorado River in the Grand Canyon is a journey back in time. Depending on the take-out point (others at Whitmore Wash: river mile 187, Diamond Creek: river mile 225) and the type of watercraft, the trip can take from 6 days to three weeks. On the first day out of Lee's Ferry (river mile 0), you see the Kaibab Formation (230 million-year-old topmost layer of the mile deep Grand Canyon) rise out of the river. By the middle of the trip, you are surrounded by 2-billion-year-old Vishnu Schist at the bottom of the Inner Gorge. In between, The Marble Gorge, named by Major John Wesley Powell, is dominated by tall, vertical, brightly colored, Redwall limestone cliffs that make it the most spectacular section along the Colorado River.