Bryce Canyon National Park is located in southwestern Utah. The major feature of the park is Bryce Canyon, which despite its name, is not a canyon, but a collection of giant natural amphitheaters along the eastern side of the Paunsaugunt Plateau. Bryce is distinctive due to geological structures called hoodoos, formed by frost weathering and stream erosion of the river and lake bed sedimentary rocks. The red, orange, and white colors of the rocks provide spectacular views for park visitors. The rim at Bryce varies from 2400 to 2700 meters. Many ephemeral streams have eaten into the plateau, forming horseshoe-shaped bowls. The largest and most striking is Bryce Amphitheater. Encompassing six square miles, it is the park's scenic heart.