The Kan river is a 390 mile (629 km) long tributary of the Yenisei River

Yenisei River

Yenisei , also written as Yenisey, is the largest river system flowing to the Arctic Ocean. It is the central of the three great Siberian rivers that flow into the Arctic Ocean...

 in Siberia

Siberia

Siberia is an extensive region constituting almost all of Northern Asia. Comprising the central and eastern portion of the Russian Federation, it was part of the Soviet Union from its beginning, as its predecessor states, the Tsardom of Russia and the Russian Empire, conquered it during the 16th...

, Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. It drains a basin of 36,900 km².

The headwaters of the river rise in the Sayan Mountains

Sayan Mountains

The Sayan Mountains are a mountain range between northwestern Mongolia and southern Siberia, Russia.The Eastern Sayan extends from the Yenisei River at 92° E to the southwest end of Lake Baikal at 106° E...

 and flow from there in a northerly direction through Kansk

Kansk

Kansk is a town on the left bank of the Kan River in Krasnoyarsk Krai, Russia. Population: It is home to the Kansk air base and is crossed by the Trans-Siberian railroad....

 and then in a westerly direction through Zelenogorsk

Zelenogorsk, Krasnoyarsk Krai

Zelenogorsk is a closed town in Krasnoyarsk Krai, Russia. It was formerly known as Krasnoyarsk-45 and was involved in enriching uranium for the Soviet nuclear program...

, entering Yenisei at Ust-Kan

Ust-Kan

Ust-Kan is the name of several rural localities in Russia:*Ust-Kan, Altai Republic, a selo in Ust-Kanskoye Rural Settlement of Ust-Kansky District of the Altai Republic...

(43 miles (70 km) north-east of Krasnoyarsk).