Selemdzha

Selemdzha
Selemdzha
	View of the river near Ekimchan
	Zeya basin
Native name	Селемджа
Location
Country	Russia
Physical characteristics
Source	Bureya Massif
• coordinates	52°26′18″N 134°36′30″E / 52.43833°N 134.60833°E
• elevation	1,550 m (5,090 ft)
Mouth	Zeya
• coordinates	51°43′58″N 128°51′53″E / 51.73278°N 128.86472°ECoordinates: 51°43′58″N 128°51′53″E / 51.73278°N 128.86472°E
• elevation	155 m (509 ft)
Length	647 km (402 mi)
Basin size	68,600 km2 (26,500 sq mi)
Basin features
Progression	Zeya→ Amur→ Sea of Okhotsk

The Selemdzha (Russian: Селемджа) is a river in the Amur Region of Russia. It is the biggest, left tributary of the Zeya. The length of the river is 647 km. The area of its basin 68,600 km².^[1]

Course[]

The Selemdzha has its source where three mountain ranges meet the Bureya Massif, the from the south, the Ezop Range from the west and the from the north, and flows first northwest with the to the north, and then westwards across the .^[2] crossing the Baikal–Amur Mainline just west of Fevralsk and reaches the Zeya north of the Trans-Siberian Railway and Blagoveshchensk.

Its main tributaries are the and . The Selemdzha freezes up in early November and stays under the ice until early May.^[2]