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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]
English: The major physiographic provinces of the 48 conterminous United States. This map is based on public domain data from the USGS. Originator: Fenneman, N.M., and Johnson, D.W. Publication_Date: 1946 Title: Physiographic divisions of the conterminous U. S. Geospatial_Data_Presentation_Form: map Publication_Place: Washington, DC Publisher: USGS
English: The major physiographic divisions of the 48 conterminous United States. This map is based on public domain data from the USGS. Originator: Fenneman, N.M., and Johnson, D.W. Publication_Date: 1946 Title: Physiographic divisions of the conterminous U. S. Geospatial_Data_Presentation_Form: map Publication_Place: Washington, DC Publisher: USGS
Physiographic Map from "Geography of Ohio," published in 1923. During the early 1900s, the study of regional-scale geomorphology was termed "physiography". Physiography later was considered to be a portmanteau of "physical" and "geography", and therefore synonymous with physical geography, and the concept became embroiled in controversy surrounding the appropriate concerns of that discipline.
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.
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 Delaware Geological Survey is the primary source of information about Delaware geology and hydrogeology, such as surface and sub-surface geologic rock formations, extent and quality of aquifers, stream and groundwater monitoring, water supply, earthquakes, floods and droughts, coastal processes (tides, beach erosion), topographic mapping ...
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