Here's why:

* Plateau: A plateau is a large, relatively flat area of land that stands at a higher elevation than the surrounding land. They are often cut by canyons, which are deep, narrow valleys formed by erosion.

Here are some other terms that are related, but not quite the same:

* Mesa: A mesa is a smaller, flat-topped hill with steep sides, often found on a plateau.

* Butte: A butte is even smaller than a mesa, with a very flat top and steep, often vertical sides.

* Mountain: Mountains are much larger and more rounded than plateaus.

Let me know if you have any other geography questions!