Red River Delta, Vietnam20.4N 106.1E
The Red River, also known as the Song Ca in Vietnamese or the Yuan River in Chinese, is a river that flows from southwestern China through northern Vietnam to the Gulf of Tonkin. In this orthorectified image, it can be seen at its mouth, flowing into the gulf.
The Red River begins in China’s Yunnan province in the mountains south of Dali. It flows generally southeastwardly, leaving China through Yunnan’s Honghe Autonomous Prefecture.
It enters Vietnam at Lào Cai Province. Once reaching the lowlands near Viet Tri, the river and its distributaries spread out to form the Red River Delta. The delta is a major agricultural area of Vietnam with vast area devoted to rice.
Here, the cities of Nam Dinh (left) and Thai Binh (right) are visible in the Red River Delta, near the riverbanks. The foothills of the northern Annamite Mountains line the left side of the image.