Yenisey

The Yenisey, also romanised as Yenisei or Jenisej, is the fifth-longest river system in the world, and the largest to drain into the Arctic Ocean.

Rising in Mungaragiyn-gol in Mongolia, it follows a northerly course through Lake Baikal and the Krasnoyarsk Dam before draining into the Yenisey Gulf in the Kara Sea. The Yenisey divides the Western Siberian Plain in the west from the Central Siberian Plateau to the east; it drains a large part of central Siberia.

It is the central one of three large Siberian rivers that flow into the Arctic Ocean. The maximum depth of the Yenisey is 61 metres and the average depth is 14 metres.

Source: Wikipedia