< Modern | United States
Arizona is a state in the Southwestern Region of the United States. It borders Baja California Norte to the west, Nevada to the northwest, Utah to the north, Colorado to the northeast, New Mexico to the east, Chihuahua to the southeast, Sonoraloa to the south, and Baja California to the southwest. Arizona is the 5th largest U.S. state, after New Mexico and before Nevada.