General terms:
* Plateau: This is a common term for a large, elevated area of land with a relatively flat surface. Plateaus are often formed by geological processes like uplift or volcanic activity.
* Tableland: This term emphasizes the flat, table-like surface of the raised land.
* Mesa: This term is often used for a smaller, isolated plateau with steep sides.
* High plain: This term highlights the flatness and the elevation of the land.
More specific terms:
* Steppe: This term is used for a dry, grassy plain, often found at high elevations.
* Llano: This term is used for a treeless plain in the southwestern United States.
* Pampa: This term is used for a vast, flat grassland in South America.
Other possibilities:
* Raised plain: This is a simple and descriptive term that highlights the flatness and elevation of the land.
* Elevation: This is a general term that refers to the height of a piece of land above sea level.
Ultimately, the best term to use depends on the specific context and what you want to emphasize about the raised flatland.