Black River

Not to be confused with Black River, Jamaica

The Black River (Vietnamese: Sông Đà) is a river in Vietnam. It is located almost entirely in the North Western Region.

The river flows from the far north western highlands through steep mountain valleys, before flowing out into the Red River in Phú Thọ Province. It is the second longest river within Vietnam after the Red River.

Infrastructure
There are 2 dams (the Sơn La Dam and the Hòa Bình Dam), the former of which creates the second largest lake in Northern Vietnam after Thác Bà Lake.

There are also 8 road bridges that cross the river, one of which, located between Điện Biên Province and Lai Châu Province, is the highest in Vietnam.