Ma Pi Leng

Mã Pí Lèng Pass is a mountain pass on National Highway 4C in far northern Vietnam, on the route between Đồng Văn and Mèo Vạc in Tuyên Quang province. The pass reaches about 1,500 meters above sea level and sits on the winding mountain road across the Đồng Văn Karst Plateau, a karst limestone landscape of ridges, sinkholes, and steep escarpments.