While the scenery down in the Grand Canyon is wonderful, the most iconic views are from the rim of the canyon. The views are great all times of day, with the shadows in the canyon constantly changing with the angle of the sun. The National Park Service operates a great shuttle system to get to the scenic viewpoints on the south rim, which helps control the traffic during the busy season, while the more remote north rim requires driving along narrow winding roads to get to the best viewpoints. This sunset photo was taken from the south rim, we got on the shuttle without any plan of where we were going and had the decision made for us when the shuttle stopped at this viewpoint since it was almost sunset. The sun hitting the canyon walls was as warm as it appears in this picture, and the walls being lit by the sun really contrasted with the valleys deeper in the canyon that were already quite dark.