National Route 1A (Vietnamese: Quốc lộ 1A (or abbrv. QL1A) or Đường 1) is the trans-Vietnam highway. The route begins at km 0 at Huu Nghi Quan Border Gate (cửa khẩu Hữu Nghị Quan) near the China-Vietnam border. The route ends at (km 2301 + 340 m) at Năm Căn township in Cà Mau Province.
National Route 1A
|Quốc lộ 1A|
|Length||2,301.340 km (1,429.986 mi)|
|Existed||Early 20th century–present|
|North end||G7211 at Friendship Pass, Lạng Sơn Province|
| in Đồng Đăng, Cao Lộc District, Lạng Sơn Province|
in Lạng Sơn, Lạng Sơn Province
|South end||Năm Căn, Năm Căn District, Cà Mau Province|
|Highways in Vietnam
National Route 1A runs across provinces and cities of Vietnam:
The National Route 1A was constructed by the French colonists in early 20th century. It has been upgraded recently by Japanese ODA as well as loans from World Bank. During both the First Indochina War and Second Indochina War (the Vietnam War), Road 1A was the site of a number of battles between Vietnamese forces and French or American troops. One of the most notable engagements was the French Operation Camargue in 1953.
Thanh Hóa (Vietnamese: [tʰajŋ̟ hwǎː] (listen)) is the capital of Thanh Hóa Province. The city is situated in the east of the province on the Ma River (Sông Mã), about 150 kilometers (93 miles) south of Hanoi and 1560 kilometers (969 miles) north of Ho Chi Minh City. Thanh Hoa became one of the most populous cities in North Central Coast after expanding in 2012, with a population of approximately 400,000. Thanh Hoa township was upgraded to Thanh Hoa City in 1994 and has been center of politics, economy, culture, education and entertainment of Thanh Hóa Province for a long time.Đồng Hới
Đồng Hới (listen) is the capital city of Quảng Bình Province in the north central coast of Vietnam. The city's area is 155.71 km2 (60.12 sq mi). Population as per the 2013 census was 160,000. It is served by National Highway 1A, the Đồng Hới Railway Station, and airport. By road, Đồng Hới is 486 kilometres (302 mi) south of Hanoi, 195 kilometres (121 mi) south of Vinh, 160 kilometres (99 mi) north of Huế and 1,204 kilometres (748 mi) north of Hồ Chí Minh City. It borders Quảng Ninh District on the west and south, the South China Sea on the east, Bố Trạch District on the north.Đồng Hới has a 12-km-long coastline with white sand beaches. It is the closest city to Phong Nha-Kẻ Bàng National Park, UNESCO's World Natural Heritage Site, 50 km north.