General terms:
* Hill: A rounded elevation of land, smaller than a mountain.
* Mountain: A large, steep elevation of land, often with a peak.
* Plateau: A broad, flat area of high land.
* Ridge: A long, narrow elevation of land.
* Peak: The highest point of a mountain or hill.
* Summit: The top of a mountain, hill, or other high elevation.
* Elevation: The height of a place above sea level.
* Uplift: A raised area of land, often caused by geological processes.
More specific terms:
* Butte: A steep-sided, flat-topped hill.
* Mesa: A broad, flat-topped hill, often with steep sides.
* Knoll: A small, rounded hill.
* Mound: A heap of earth, often artificial.
* Escarpment: A steep cliff or slope.
The best term to use will depend on the specific characteristics of the piece of land you are describing.
