Utah is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to its west by Nevada. Utah also touches a corner of New Mexico in the southeast. Most of the western half of Utah lies in the Great Basin.
Utah is home to more than 600 vertebrate animals as well as numerous invertebrates and insects.