Grand Canyon National Park

Grand Canyon National Park is the United States' 15th oldest national park. Named a UNESCO World Heritage Site in 1979, the park is located in Arizona. The park's central feature is the Grand Canyon, a gorge of the Colorado River, which is often considered one of the Seven Natural Wonders of the World. The park covers 1,217,262 acres (1,901.972 sq mi, 492,608 ha, 4,926.08 km²) of unincorporated area in Coconino and Mohave counties.