en Seymchan (Kolyma)

Seymchan
Сеймчан
Seymchan; Сеймчан
	View of the river
	Mouth location in Magadan Oblast, Russia
Location
Country	Magadan Oblast, Russia
Physical characteristics
Source
• location	Confluence of Left Seymchan and Right Seymchan; Upper Kolyma Highlands
• coordinates	63°59′12″N 154°14′41″E / 63.986667°N 154.244722°E
Mouth	Kolyma
• location	Near Seymchan
• coordinates	62°55′17″N 152°28′04″E / 62.921389°N 152.467778°E
Length	158 km (98 mi)
Basin size	3,600 km2 (1,400 sq mi)
Discharge
• average	35.24 m3/s (1,244 cu ft/s)
Basin features
Progression	Kolyma→ East Siberian Sea

The Seymchan (Russian: Сеймчан) is a river in Srednekansky District, Magadan Oblast, Russia. It is a left tributary of the Kolyma, with a length of 158 kilometres (98 mi) a drainage basin of 3,600 square kilometres (1,400 sq mi).^[1]^[2]

The name comes from the Yakut language word Kheymchen, which is an area of open water surrounded by sea ice.^[3]

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 (98 mi) from its mouth, downstream from the mouth of the Buyunda on the opposite bank.^[4]

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.^[5]

Its main tributaries are the Medvezhya and the Verina.