Rivers of Sakhalin Oblast

The Poronay (, ) is the longest river on the island of Sakhalin in Russia. It flows in a southerly direction through Tym, Smirnykhovsky and Poronaysky Districts.

river in Sakhalin, Russia

The Lyutoga () is a river on the Russian island of Sakhalin. It flows through Kholmsk and Aniva districts of Sakhalin Oblast. Starting at the western slope of the Mitsulsky Mountain Ridge, which belongs to the system of Western Sakhalin Mountains. It flows along a wide valley from North to South, and discharges into the Aniva Bay of the Sea of Okhotsk. There is a town of Aniva () (with population of ca. 8,100 people) in the mouth of the river, the town used to have the same name as the river before 1905. There are several comparatively large villages located on Lyutoga banks (upstream to downs