The largest desert in North America is the Chihuahuan Desert, it covers a large portion of the state of Chihuahua, and six other states, in Mexico, but is also part of both New Mexico and Texas. This desert covers the lower Rio Grande Valley and the lower Pecos Valley in the state of New Mexico and is home to the cities of Albuquerque, Alamogordo, Carlsbad, Carrizozo, Deming, Fort Sumner, Las Cruces, and Roswell.