Harquahala Mountain Trail Professional Review and Guide
"This trail has been upgraded by the BLM in recent times, but it is still a steep, rough, exciting drive leading to the reward of the highest summit in southwest Arizona. The start of the trail is well marked from the paved Eagle Eye Road. The first few miles are easygoing as the trail travels along a graded dirt road snaking toward Blue Tank Canyon. A track on the left goes to the scattered remains of the Alaska Mine, 1.2 miles from the start of the trail. A few miles into the canyon, the trail starts to climb and it doesn’t stop climbing until it reaches the summit of Harquahala Mountain, 6.8 miles later. The shelf road continues all the way to the top.
Special Attractions: Vehicle corridor passing between two wilderness areas; Hiking access to Hummingbird Springs Wilderness and Big Horn Mountains Wilderness; Very scenic trail passing through remote desert area. High-clearance 4WDs are required. This trail has either a rough, rutted surface, rocks up to 9 inches, mud and deep sand that may be impassable for inexperienced drivers, or stream crossings up to 18 inches deep. Certain sections may be steep enough to cause traction problems, and you may encounter very narrow shelf roads with steep drop-offs and tight clearance between rocks or trees."