Gray Eagle Mine Trail Professional Review and Guide
"This is a short, winding trail that travels through the very rugged terrain of Billy Mack Mountain. It offers good views of the area and is an easy, undulating trail suitable for all stock vehicles. The trail starts and finishes from the graded Nellie Mine Road. The eastern entrance to the trail is easier to find as it has a small marker post at the junction. The western entrance is unmarked. Much of the trail travels in a narrow, gravelly, smooth wash. Part of the time it runs in a narrow canyon with palo verde trees growing up the sides. There are a few rocky sections, but the formed trail is generally easygoing, if a bit rough in places. This is an easier trail than Red Mountain Trail but runs through similar scenery.
Special Attractions: Gray Eagle Mine; Rugged, remote trail through the spectacular Buckskin Mountains; Rockhounding in old mine sites. High-clearance 4WDs are recommended, though most stock SUVs are acceptable. Expect a rough road surface with rocks larger than 6 inches, but there will be a reasonable driving line available."