コリマ川
Omsukchan is a mountain town that lies in the western shore of Sugoy River, a tributary of Kolyma River. It is 27 km east of Dukat, the other town in the raion, and 22 km north of the ghost town of Galimy. The Omsukchan Range, highest ridge of the Kolyma Mountains, rises to the west and northwest of the town.