Hydrology Road (BLM Road 3422) traverses 35 miles of high-country terrain in Wyoming‘s Sierra Madre range, crossing the Continental Divide twice along its loop. The route combines two-track and improved gravel roads, making it accessible to mountain bikers, horseback riders, and hikers seeking backcountry exploration.

The landscape shifts between sagebrush flats, aspen groves, and cottonwood draws, with sweeping vistas of both the Sierra Madre and Snowy Range Mountains. Wildlife is abundant—expect to encounter pronghorn, elk, mule deer, and various raptor species. Anglers will find fishing opportunities along the route’s waterways.

As BLM land, dispersed camping is permitted throughout the area, allowing visitors to set up camp in undeveloped sites away from the road. No developed campgrounds or facilities exist along the route, so pack accordingly with water and supplies.

Access begins near the Continental Divide, with ride times ranging from two to five hours depending on pace and side trip exploration. Summer and early fall offer the best conditions, though high elevation means afternoon thunderstorms are common. A high-clearance vehicle is recommended for road access.

Explore Nearby

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• Flat Tops Trail Scenic Byway — Scenic Byway in Colorado