Russia
Ob River is a major river in western Siberia, Russia.
The Ob River (also known as Obi River) is located entirely in Russia.
It is located on Asia
Russia
The Ob River is located in Siberia, Russia and is 2,268 miles long. It begins at the Katun River that runs out from Belukha Mountain.
Russia
Asia.
Europe
Yes the Nile river does have waterfalls. The largest waterfall located in the Nile river is in Ethiopia on Lake Tana.
Victoria Falls is the famous waterfall on the Zambezi River. It is located in the country of Zimbabwe.
the Ob & Irtish are in Siberia.