Zion National Park is a southwest Utah nature preserve distinguished by Zion Canyon’s steep red cliffs. Zion Canyon Scenic Drive cuts through its main section, leading to forest trails along the Virgin River. The river flows to the Emerald Pools, which have waterfalls and a hanging garden. Also along the river, partly through deep chasms, is Zion Narrows wading hike. A prominent feature of the 229-square-mile park is Zion Canyon, which is 15 miles long and up to 2,640 ft deep. The canyon walls are reddish and tan-colored Navajo Sandstone eroded by the North Fork of the Virgin River. The lowest point in the park is 3,666 ft at Coalpits Wash and the highest peak is 8,726 ft at Horse Ranch Mountain. 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.