mountain range extending 100 miles (160 km) north to south, through Catron and Sierra counties, southwestern New Mexico, U.S. The range follows the Continental Divide for much of its length. Most of the range lies within the Gila National Forest, near the headwaters of the Gila River. The highest point in the range is Reeds Peak (10,015 feet 【3,053 metres】). State Highway 152, also called the Black Range Highway, was built through the mountains in 1937; most of the range is otherwise without roads, although a network of hiking trails enables access into the mountains at several points.