Black River

The third one in Top 10 Longest Rivers in Vietnam that Toplist would like to introduce to you is Black River. The Black River (Vietnamese: Sông Đà) is a river in China and northwestern Vietnam. Its origin is in the Chinese province of Yunnan. The river flows from China through the Vietnamese provinces of Lai Châu (where it forms part of the border with Điện Biên Province), Sơn La and Hòa Bình.

The Black River is the most important tributary of the Red River, which it joins near Việt Trì in Phú Thọ Province in Tam Nông District. It is also part of the border between Phú Thọ Province and Hanoi (previously with Hà Tây Province). The river's total length is 910 kilometers, with approximately 427 kilometers in China and 527 kilometers in Vietnam.

The Black River generates a significant amount of hydroelectric power.

On the Black River in Vietnam, there are three large hydroelectric plants. The Hòa Bình Dam was finished in 1994. The Sơn La Dam was completed in 2012, making it Southeast Asia's largest hydroelectric producer. On December 20, 2016, the Lai Châu Dam in the Mường Tè District of Lai Châu Province was dedicated. These three dams have a total installed power capacity of 5520 megawatts.

Length: 910 km (570 mi- shared with China)