blue ridge moutain
Pet'en Geographically speaking, plain, prairie, savannah, etc.
The Great Plains region in North America is known for its vast expanses of flat land. Other regions with flat land include parts of the Midwest in the United States and the Pampas in Argentina.
The Great Plans Region
plateu
Pe'ten
what is a vast flat treeless region in which the subsoil is permanently frozen is called
Well, a plateau is a flat elevated expanse of land, so it most likely means a very flat region.
A region of flat land is called a plain. Plains are characterized by low elevation and relatively flat topography, making them ideal for agriculture and transportation.
The Praries.
blue ridge moutain
Iceland is mountainous.
The flat land region running from Texas to Florida is the Gulf Coastal Plain. The flat to rolling topography is broken by many streams, river riparian areas, and marsh wetlands.