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The physiographic regions of the contiguous United States comprise 8 divisions, 25 provinces, and 85 sections. [1] The system dates to Nevin Fenneman's report Physiographic Divisions of the United States, published in 1916. [2] [3] The map was updated and republished by the Association of American Geographers in 1928. [4]
The landforms of Earth are generally divided into physiographic regions, consisting of physiographic provinces, which in turn consist of physiographic sections, [1] [2] [3] though some others use different terminology, such as realms, regions and subregions. [4] Some areas have further categorized their respective areas into more detailed ...
Physiographic regions are a means of defining Earth's landforms into independently distinct, mutually exclusive areas, independent of political boundaries. It is based upon the classic three-tiered approach by Nevin M. Fenneman in 1916, that separates landforms into physiographic divisions, physiographic provinces , and physiographic sections.
Atlantic Plain Physiographic Division of the United States. Green highlighted area is the Atlantic Plain, and the other seven physiographic divisions of the contiguous United States are shown in the legend. The Atlantic Plain is one of eight distinct physiographic divisions of the contiguous United States. Using the USGS physiographic ...
The Physiographic Regions—Physiographic divisions of the United States, within the North American U.S. states The main article for this category is United States physiographic region . See also: Physiographic regions of the world
A physiographic province is a geographic region with a characteristic geomorphology, and often specific subsurface rock type or structural elements. The continents are subdivided into various physiographic provinces, each having a specific character, relief, and environment which contributes to its distinctiveness. The physiographic provinces ...
There are eight physiographic regions in the United States. Each region is divided into provinces, there are 25 provinces in the United States. Each region is then divided into sections, creating 85 different physiographic sections in the United States. The Appalachian Plateau is a province of the physiographic region of the Appalachian Highlands.
The Basin and Range Province is a vast physiographic region covering much of the inland Western United States and northwestern Mexico. It is defined by unique basin and range topography , characterized by abrupt changes in elevation, alternating between narrow faulted mountain chains and flat arid valleys or basins.