The Pinaleño Mountains, are a remote mountain range in southeastern Arizona, near Safford, Arizona. The mountains have over 7,000 feet of vertical relief, more than any other range in the state. The mountains are surrounded by the Sonoran-Chihuahuan Desert. Subalpine forests cover the higher elevations. According to The Nature Conservancy, they traverse five ecological communities and contain "the highest diversity of habitats of any mountain range in North America."