The Day River () is a river in

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

. It was formerly known as Hát River ( or ) or Gián Khẩu River (). The river is a

distributary A distributary, or a distributary channel is a stream channel that branches off and flows a main stream channel. It is the opposite of a ''tributary'', a stream that flows another stream or river. Distributaries are a result of river bifurc ...

of the Red River, draining into the

Gulf of Tonkin The Gulf of Tonkin is a gulf at the northwestern portion of the South China Sea, located off the coasts of Tonkin ( northern Vietnam) and South China. It has a total surface area of . It is defined in the west and northwest by the northern co ...

. The river has a length of 240 km and has a

drainage basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

of more than 7,500 km², flowing through

Hanoi Hanoi ( ; ; ) is the Capital city, capital and List of cities in Vietnam, second-most populous city of Vietnam. The name "Hanoi" translates to "inside the river" (Hanoi is bordered by the Red River (Asia), Red and Black River (Asia), Black Riv ...

, and the provinces of Hòa Bình,

Hà Nam Hà is a Vietnamese given name, male or female, meaning "river". Hà is a Vietnamese 'surname' (during French colonialism). The name is transliterated as He in Chinese and Ha in Korean. Ha is the anglicized variation of the surname Hà. It is ...

, Ninh Bình and

Nam Định Nam Định () is the capital city of Nam Định province in the Red River Delta of the Northern Vietnam. History From August 18–20 of each year, there is a festival held in Nam Định called the Cố Trạch. This celebration honors Gener ...

References

Rivers of Ninh Bình province Rivers of Hà Nam province Rivers of Nam Định province Rivers of Hanoi Hong River Gulf of Tonkin Rivers of Vietnam {{Vietnam-river-stub

See also

References