First Cycle of Erosion
A coastal plain in the first cycle of erosion. The presence of two hard layers produces a terraced cuesta front. In exceptional cases the upper terrace may weather back with sufficient rapidity to constitute a second cuesta with a lowland of some width between it and the lower cuesta, if the weak stratum between the harder is of sufficient thickness.
Amadeus W. Grabau A Textbook of Geology (Boston: D.C. Heath & Co., 1920) 716