The Thạch Hãn River is a river in
Quảng Trị province,
Vietnam
Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making it ...
. It rises in the
Annamite Mountains, and enters the
South China Sea
The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phil ...
east of
Đông Hà. It is approximately long, with two main tributaries and with several branches to the sea.
[ Dai Nam Unified, volume 26, Appendix-Major rivers in our country, pages 256-257.]
Tributaries

The Thạch Hãn river is formed by the confluence of two rivers which rise in the western highlands of Vietnam; the Đakrông, which flows from the south-west through
Đa Krông District, and the Rào Quán, which rises in the mountains north of
Khe Sanh.
In the plains the river is joined by three main left bank tributaries; the Ái Tử, the Vĩnh Phước, and the Hiếu, known in its upper reaches as the Cam Lộ. The river enters the sea at
Cửa Việt, east of
Đông Hà city.
The Thạch Hãn is also connected by distributaries to the
Bến Hải River to the north, marking what used to be the Demilitarized Zone, and the Ô Lâu to the south, which reaches the sea at the
Tam Giang lagoon.
References
External links
Rivers of Vietnam
Rivers of Quảng Trị province
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