Several small dams create a series of lakes in the Salt River as it twists westward toward Phoenix. Long, dark Theodore Roosevelt Lake is located roughly 60 miles (97 kilometers) east of Phoenix. Most of the forested Mazatzal and Mesca Mountains are part of the Tonto National Forest and Superstition Wilderness. The highly reflective areas in the Mesca Mountains near the city of Globe show extensive mining operations for silver, gold, asbestos, manganese, vanadium, and tungsten, but the mineral mined most often is copper. A small section of the Gila River is visible in the upper left corner of the photograph.