Geographical location of the East European Plain?

The East European Plain is located in the east of Europe. The eastern border of this plain runs along the Ural Mountains, and the southern border runs along the Caucasian ridge. In the northeast, the East European Plain stretches to the Barents Sea, and in the northwest to the Baltic Sea. Most of the territory of the plain is occupied by Russia, in addition to which 10 more countries are located here partially or completely. With an area of about 4 million km², it ranks second among all the plains and is second only in size to the Amazonian lowland.