That would be a mountain.
large land area that measures millons of square kilometers and rises a considerable distance above sea level
Plateau
A plateau.
A plateau.
plateu.
plateau
plateau
It is a plateau
plateau or mesa
A mesa (:
A small one is a mesa or a butte; a large on is a plateau.
A large area that rises steeply about the surrounding land is a plateau. It is a high flat area where the ground is relatively level.