The Watchman is perhaps the most iconic peak in Zion National Park. During sunset, the sandstone face of the Watchman glows red-orange when the sun hits it. Zion National Park is an American national park located in Southwestern Utah near the city of Springdale. A prominent feature of the 229-square-mile park is Zion Canyon, which stretches 15 miles long and spans up to half a mile deep. It cuts through the reddish and tan-colored Navajo Sandstone by the North Fork of the Virgin River. Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert regions, the park has a unique geography and a variety of life zones that allow for unusual plant and animal diversity. Numerous plant species as well as 289 species of birds, 75 mammals (including 19 species of bat), and 32 reptiles inhabit the park's four life zones: desert, riparian, woodland, and coniferous forest. Zion National Park includes mountains, canyons, buttes, mesas, monoliths, rivers, slot canyons, and natural arches.