General terms:
* Plateau: A large, flat area of land that is raised above the surrounding area.
* Tableland: A plateau with a flat top and steep sides, often formed by erosion.
* Mesa: A smaller, isolated plateau with a flat top and steep sides, often formed by erosion.
* Steppe: A vast, flat, grassy plain, typically found in semi-arid regions.
Specific types:
* Tundra: A cold, treeless, flat plain found in high latitudes.
* Savannah: A grassy plain with scattered trees, found in tropical and subtropical regions.
* Desert plateau: A plateau located in a desert region, often with very little vegetation.
Other possibilities:
* High plain: This could be a broad, flat expanse of land at high elevation, without specific features like a steep cliff or erosion.
* Elevated plain: Similar to a high plain, but emphasizing its elevated position.
To give you the most accurate answer, I need more information. Could you tell me:
* Where is this area located? (Country, continent, specific region)
* What is the approximate elevation?
* What is the landscape like? (Grasslands, deserts, forests?)
With more details, I can provide a more specific answer about the type of high flat land you're describing.