Four main ranges: the Santa Catalinas (north/northeast, including Mount Lemmon at 9,171 ft), the Rincons (east), the Santa Ritas (south, including Mount Wrightson at 9,456 ft), and the Tucson Mountains (west, including Wasson Peak at 4,687 ft). The Tortolitas lie north across the Santa Cruz Valley, and the Sierritas due south.