The Lena River, the Ob River and the Yenisei River in Russia flow into which large body of water?
Ob River Ob River The Ob River (), also Ob', is a major river in western Siberia, Russia, and is the world's seventh-longest river. It forms at the confluence of the Biya and Katun Rivers which have their origins in the Altay Mountains. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean (the other two being the Yenisei River and the Lena River). The Gulf of Ob is the world's longest estuary. The internationally known name of the river is based on the Russian name "Обь" ("Obʹ"). Possibly from Proto-Indo-Iranian "*Hā́p-", "river, water" (compare Vedic
Yenisei River the upper Yenisei in 1605, travelling from the Ob River, up the Ket River, portaging and then down the Yenisei as far as the Sym River. During World War II, Nazi Germany and the Japanese Empire agreed to divide Asia along a line that followed the Yenisei River to the border of China, and then along the border of China and the Soviet Union. Studies have shown that the Yenisei suffers from contamination caused by radioactive discharges from a factory that produced bomb-grade plutonium in the secret city of Krasnoyarsk-26, now known as Zheleznogorsk. Yenisei River The Yenisei (, "Jeniséj";