East of the Gila Valley, straddling Graham and Cochise counties, the Galiuro Mountains hold hundreds of square miles of some of Arizona’s most rugged and least-developed backcountry, including the federally protected Galiuro Wilderness. Deep canyons, volcanic cliffs, and hidden springs shelter mule deer, javelina, desert bighorn sheep, and generations of cattle-ranching history that still shapes communities like Klondyke and Aravaipa at the range's edge. With only unpaved backcountry roads for access, the Galiuros reward travelers seeking genuine solitude, wildlife photography, and a firsthand look at the Old West side of the Gila Valley region.