Mount Jefferson is a high mountain pass at an elevation of 2.890m (9,481ft) above the sea level, located in Madison County, in the U.S. state of Montana.
The road to the summit, located in the Tobacco Root Mountains, is gravel, rocky, tippy and bumpy at times. It’s usually impassable from October to June (weather permitting).
Located in Beaverhead-Deerlodge National Forest, it’s a great trail for experienced wheelers. Avoid driving in this area if unpaved mountain roads aren't your strong point. 4x4 vehicle required. Stay away if you're scared of heights. Expect a trail pretty steep. Wet conditions may make for tough driving along the muddy road.