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Physiographic Division Technical Terms
Physiographic Division: A large portion of a continent of which all parts are similar in geologic structure and climate at a small scale (e.g. 1:5,000,000) and which has consequently had a unified geomorphic history and whose pattern of relief or landforms differ significantly from that of adjacent areas. Examples: the Laurentian Upland, Rocky Mountain System, and Interior Highlands of the U.S.A. western U.S.A. [The highest level in the Physiographic Location part of the Geomorphic Description System]. SW & NASIS Data Dictionary