Vilyuy River in Russia is a river of the Central Siberian Plateau longest tributary of the Lena River. About 2,650 km long. it flows mostly within the Sakha Republic. Its basin covers about 491,000 square

Yarlung Tsangpo River (around 3,848 km) is the longest river of Tibet. It is the upper stream of the Brahmaputra River. Originating at Angsi Glacier in western Tibet, southeast of Mount Kailash & Lake