Tucson is a city in Arizona’s Sonoran Desert. It is ringed by five mountain ranges, the Santa Catalina Mountains to the north, Rincon Mountains to the east, Santa Rita Mountains to the south, and the Tortolita Mountains to the west. Tucson, known locally as the Old Pueblo, is situated about 2,400 feet above sea level and is the seat of Pima County. The city is surrounded by majestic desert, verdant canyons, and rugged mountains with hot summers and warm winters. The metropolitan area is home to over a million people.