The Vam Nao River or Lao Vam is a 6.5 kilometre river in An Giang Province

An Giang Province

An Giang is a province of Vietnam. It is located in the Mekong Delta, in the southwestern part of the country, sharing a border with Cambodia to the northwest.- Geography :...

, Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

, running near the Vietnam-Cambodia

Cambodia

Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

 border. It connects the Tien River with the Hau River. Vam Nao has an important role for the Cuu Long River Delta in irrigation and transport. Vam Nao is also famed for being the place of a fierce naval battle between the Vietnamese and the Siamese, and also because of its reef fish and catfish. ON average the river is 700 metres wide and 17 metres deep.