Чыонгшон
The Mụ Giạ Pass (Đèo Mụ Giạ, Quảng Bình) is a mountain pass in the Annamite Range between northern Vietnam and Laos, located 90 km northwest of Đồng Hới, Vietnam. The pass is 418 m above sea level and connects National Road 15 from Tân Ấp in Vietnam to Route 12 in Khammouane Province in Laos.