What is the name plateau located in Antarctica?

Answer 1

Using this description of 'plains': "An extensive, level, usually treeless area of land," one could consider vast expanses of Antarctica as 'plains'.

However, since the continent is covered -- 98% -- by ice, and since it's too cold there for life to survive, there is no food chain there, so no trees can grow: Antarctica is often described as having 'long horizons', based on the flatness of the ice that covers the continent. This is especially true at the South Pole.

Answer 2

You may be thinking of the polar plateau, the flattest expanse of horizon on earth -- about eight miles long..

Answer 3

You may be thinking of the polar plateau.