Seymchan (Kolyma)

The Seymchan (Сеймчан) is a river in Srednekansky District, Magadan Oblast, Russia. It is a left tributary of the Kolyma, with a length of 158 km a drainage basin of 3600 km2.

The name comes from the Yakut language word Kheymchen, which is an area of open water surrounded by sea ice.

Course
The river rises in the Upper Kolyma Highlands, eastern limits of the Chersky Range, at the confluence of Left Seymchan and Right Seymchan. It flows first in a northeast direction, bending along its course until it flows in a southeastern direction. Finally it meets the Kolyma near Seymchan, 158 km from its mouth, downstream from the mouth of the Buyunda on the opposite bank.

Together with the Buyunda that flows roughly northwards on the other side of the Kolyma basin, the Seymchan forms the Seymchan-Buyunda Depression, which limits the Upper Kolyma Highlands from the east.

Its main tributaries are the Medvezhya and the Verina.