Old Ore Road is a 26 miles (43km) road, located in the Big Bend National Park, a national park located in the U.S. state of Texas.
Used in the early Twentieth Century to transport ore from Mexican mines to the railroad station at Marathon, the Old Ore Road generally follows the route of used by mule and pack trains a century ago. The road provides excellent views of the Chisos Mountains across the Tornillo Creek drainage to the west. The Ernst Tinaja, located approximately five miles from the southern end of the road, is a popular destination. 
Passing through the foothills of the Dead Horse Mountains, the Old Ore Road usually requires a high-clearance vehicle; four-wheel drive is strongly recommended due to some rugged terrain.
These are maintained roads where a high clearance 2WD vehicle is able to travel safely at low speeds on long dry straight-of-ways, without losing control due to wash boarding, ruts, or dips. All primitve dirt roads may be rocky with areas or soft gravel or sand that makes travel unsafe for sedans or RVs. Some road sections may require a high clearance 4WD vehicle, in four-wheel-drive, driven by a driver experienced in 4WD drive techniques to drive the road without getting stuck.
As always, road conditions are highly dependent on weather; rains often make these roads more difficult to pass.
