Me Pia Pass is one of the most famous passes in Cao Bang province, the Northwest region of Vietnam. Accordingly, the Me Pia pass located on National Highway 4A has a total length of only 2.5km, but because of the slope, it is formed into a winding road like a silk strip in the wind. The entire pass is located in Xuan Truong commune, connecting this pre-commune with the center of Bao Lac, a district bordering China.