The Olyokma-Stanovik (Russian: Олёкминский Становик; Olyokminsky Stanovik) is a system of mountain ranges in Zabaykalsky Krai, Russia.
It consists in a number of ranges of moderate height rising in the area of the sources of the Olyokma River and stretches roughly northeastwards for over 450 kilometers (280 mi).
The width of the group of ranges reaches a maximum of 250 kilometers (160 mi) in its central part.
[1] The ranges of the highlands include the following:[4] The Olyokma-Stanovik forms the main watershed between the rivers of the Lena basin (flowing into the Arctic Ocean) and the ones of the Amur basin (flowing into the Pacific Ocean).
[2] The slopes of the range are covered with larch taiga and pre-Alpine woodland up to 1,200 meters (3,900 ft), with dwarf birch in the bottoms of the river valleys.