Markha (Vilyuy)

Markha (Марха́; Марха өрүс, Marxa örüs) is a river in the Sakha Republic in Russia. It is a left tributary of the Vilyuy (in the drainage basin of the Lena). The Markha is 1181 km long, with a drainage basin of 99000 km2. Its average discharge is 405 m3/s.

Course
The river has its sources on the Vilyuy Plateau, a part of the Central Siberian Plateau. It joins the left bank of the Vilyuy 518 km from its mouth.