The best phrase that described plateau is "surface cut by streams".
What is a plateau?
A plateau is a tableland, consisting of an area of a highland made of flat terrain that is raised sharply above the surrounding area on at least one side.
Many plateau are topped with a hard, durable surface called caprock, which protects the plateau from erosion.
Valleys form when river water cuts through the plateau.
Thus, the best phrase that described plateau is "surface cut by streams".
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