How tall is a mesa and what is a mesa?

Answer:

A mesa is a flat-topped, layered rock formation which may have steep or stepped sides which seem to rise from the surrounding landscape. The mesa is formed from differential erosion, the flat, top layer being composed of more erosion resistant rock. Mesas do not have a defined height range.

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First answer by Jones1rocks. Last edit by Jones1rocks. Contributor trust: 1563 [recommend contributor recommended]. Question popularity: 2 [recommend question].