Sa Mu Pass is a mountain pass at an elevation of 1.400m above the sea level, located in western Quang Tri province, in Vietnam, near the Laos Border. It’s a pretty dangerous drive.

The road to the summit is asphalted in poor conditions. This is an exquisite winding mountain drive with sharp and blind curves and hairpin switchbacks leading the traveler over the mountains. The road over the pass links Huong Phung and Huong Lap villages. It is a big challenge for drivers on the north-south route. The pass is 19.8 km long. The zone is prone to wind and fog.