Grand Canyon National Park in Arizona is one of the oldest and the most famous national parks in the United States. It is home to the awe-inspiring Grand Canyon, a 1-mile deep gorge carved by the Colorado River. The canyon is known for its layered bands of red rock revealing millions of years of geological history.
The most popular viewpoints include Mather Point, Yavapai Observation Station, Mary Colter’s Lookout Studio and her Desert View Watchtower. Lipan Point, with wide views of the canyon and Colorado River, is another popular spot, especially at sunrise and sunset.