The Routan Islands are two islands in the eastern coast of the Chaunskaya Bay of the East Siberian Sea. They are located directly off Pevek, separated from the shore of the Pevek Peninsula by a 4.7 km wide sound. Ayon Island lies on the other side of the Chaunskaya Bay, 24 km to the west.
- Bolshoy Routan Island (Russian: Oстров Большой Роутан) is roughly triangular. It is 9.5 km long and 4.5 km wide.
- Malyy Routan Island (Russian: Oстров Ма́лый Роутан) is much smaller and lies 1 km to the west of Bolshoy Routan's southern point. It is only 1.3 km in length.
There is a small Arctic Station at Bol'shoy Routan Island.
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