Vilyuy and Aldan Rivers Flowing into the Lena, Russia63.4N 129.3E
Two of the tributaries of the Lena River, the Vilyuy (left) and the Aldan (right) can be seen flowing across eastern Siberia and into the Lena (above), which follows the curve of the Verkhoyansk Range in Russia’s Sakha Republic.
The Vilyuy River is the longest tributary of the Lena River, with a length of approximately 2,650 km, of which around 1,450 km is navigable. The Vilyuy’s drainage basin is about 454,000 km². The Vilyuy’s source lies near Ekonda, in Vilyuy Plateau, the north part of the Central Siberian Plateau. After flowing eastwards for a long stretch, it joins the Lena near Sangar.
The Aldan River is the second-longest tributary of the Lena River in the Sakha Republic in eastern Siberia. The river is 2,273 km (1412 mi) long, of which around 1,600 km (994 mi) is navigable. It rises in the Stanovoy Mountains southwest of Neryungri, then flows northeast past Aldan and eventually turns northwest and joins the Lena near Batamay.