Oloy

The Oloy (Олой) is a river in Magadan Oblast in Russia, a right tributary of the Omolon (Kolyma's basin). The length of the river is 471 km. The area of its drainage basin is 23100 km2. The river flows through sparsely populated areas of Chukotka.

Course
It has its sources in the Ush-Urekchen range, at the confluence of Left Oloy and Right Oloy. It flows roughly northwestwards between the Ush-Urekchen to the south and the Oloy Range to the north.