Bryce Canyon National Park is located in southwestern Utah. The area of the park is 145 km². The main attraction of the park is Bryce Canyon. Despite the name, it is not really a canyon, but rather a giant natural amphitheater along the eastern side of the Pauntsaugante plateau, created by erosion. Bryce Canyon is notable for its unique geological structures, called hoodoo, formed by the erosion of river and lake sediments as a result of wind, water and ice. The reds, oranges and whites of the rocks are a spectacular sight, especially at sunrise or sunset.