Located on Tucson's north side, the rugged Santa Catalina Mountains in Coronado National Forest are Tucson's most prominent range with the highest average elevation. The highest point is Mt. Lemmon at 9,147 feet, noted as the southernmost ski destination in the United States. A trip from the Tucson valley to Mt. Lemmon takes you from 2,000 to about 9,000 feet, with scenery that resembles a trip from the Mexican to the Canadian border.
https://www.visittucson.org/things-to-do/hiking/santa-catalina