page_title: Geologic map of Georgia (U.S. state)
section_title: Geologic maps that contained the geology of Georgia
hierarchical_section_title: Geologic map of Georgia (U.S. state) / History of geologic mapping in Georgia / Geologic maps that contained the geology of Georgia
caption_attribution_description: English: Maclure's 1817 Geological Map of the United States, which accompanied the article 'Observations on the Geology of the United States of North America; With Remarks on the Probable Effects That May Be Produced by the Decomposition of the Different Classes ofRocks on the Nature and Fertility of Soils: Applied to the Different States of the Union,Agreeably to the Accompanying Geological Map' published in Transactions of the American Philosophical Society, New Series, Vol. 1 (1818), pp. 1-91. This is the most common version, which also appeared in a privately published edition of the article, in 1817 and in subsequent reprints of 1822 onwards which have a different base map.
context_page_description: The geologic map of Georgia is a special-purpose map made to show geological features. Rock units or geologic strata are shown by colors or symbols to indicate where they are exposed at the surface. Structural features such as faults and shear zones are also shown. Since the first national geological map, in 1809, there have been numerous maps which included the geology of Georgia. The first Georgia specific geologic map was created in 1825. The most recent state-produced geologic map of Georgia, by the Georgia Department of Natural Resources is 1:500,000 scale, and was created in 1976 by the department's Georgia Geological Survey. It was generated from a base map produced by the United States Geological Survey. The state geologist and Director of the Geological Survey of Georgia was Sam M. Pickering, Jr. Since 1976, several geological maps of Georgia, featuring the state's five distinct geologic regions, have been produced by the federal government.
context_section_description: From the beginning of the United States, Georgia geology has been included in maps produced for the entire country. The first geological map of the U.S. was produced in 1809 by William Maclure. In 1807, Maclure undertook the self-imposed task of making a geological survey of the United States. He traversed and mapped nearly every state in the Union. During the rigorous two-year period of his survey, he crossed and recrossed the Allegheny Mountains some 50 times. The results of his unaided endeavor were submitted to the American Philosophical Society in a memoir entitled Observations on the Geology of the United States explanatory of a Geological Map, together with the nation's first geological map, which were published in the Society's journal Transactions, This precedes William Smith's geological map of England by six years, although Smith's map was constructed using a different classification of rocks. Several reports used Maclure's geological map to accompany their description of the geology of the U.S. (Beaujour, 1814 and Marcou, 1858). In 1816, within an elementary treatise of mineralogy and geology, Parker Cleaveland produced a geological map of the U.S. In 1843, Charles Moxon produced a small-scale geologic map of the U.S., where Ami Boué produced a geological structure map of the globe. In 1853, Marcou produced a geological map of the U.S. and the British provinces of North America.
   In 1856, Henry Darwin Rogers created a similar map of the geology of the U.S. and British North America. There was a short description of the geologic map of the U.S. by Charles Henry Hitchcock in 1872, which had small-scale geological maps included. Hitchcock and William P. Blake published a general geologic map of the U.S. in R.W. Raymond's Statistics of mines and mining. In 1874, they published a geological map of the U.S. and territories in the U.S. Census 9th Statistical Atlas. Hitchcock and Blake published a summary of this map in the Geological Magazine in 1873. Gray's geological map of the U.S. was published in the National Atlas special edition at a scale of about 1 inch to 300 miles in 1876 and reprinted in 1886 by the American Institute of Mining Engineers. A geological map of the U.S. east of the Rocky Mountains was produced at the scale of 1 inch to 105.5 miles by Frank H. Bradley. In the 1880s several geological maps of the U.S. were produced. William John McGee offered a detailed description for the U.S. Geological Survey in 1884. In 1887, Hitchcock produced a geological map of the U.S. and parts of Canada that was at the scale of 1 inch to 200 miles, with a review of the various maps of the U.S. that accompanied the geological map of the U.S. In 1895, McGee and J.B. Tolbert produced a 1:15,000,000 scale map of the geology of the U.S.
  There have been a host of geological maps of the U.S. produced in the 20th century. Bailey Willis produced a geological map of the U.S. in 1906. George W. Stose produced a 1:2,500,000 scale map in 1932, and a 1:500,000 scale map together with R.W. Smith in 1939. A.K. Lobeck produced a Geologic map of the United States (with text on the reverse side) in 1941 Those are just a few that have been produced. The most recent map being produced is the National Map that is a cooperative project.
caption: Maclure's Geological Map of the United States as published in 1817
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