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Plateau - (geomorphology) A comparatively flat area of great extent and elevation; specifically an extensive land region considerably elevated (more than 100 meters) above adjacent lower-lying terrain, and is commonly limited on at least one side by an abrupt descent, has a flat or nearly level surface. A comparatively large part of a plateau surface is near summit level. Compare - hill, foothill, mountain, mesa, plain.[1]


  1. Glossary Of Landform and Geologic Terms, in National Soil Survey Handbook, Part 629.02(c), United States Department of Agriculture, Natural Resouces Conservation Service