2000. U.S. Census Bureau. Geography Division. This polygon shapefile represents the unified school district boundaries in South Dakota. School districts are geographic entities within which sta... U.S. Census Bureau. Geography Division.
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1919. United States. Post Office Department. Includes "List of Counties in South Dakota" index. 76 x 104 centimeters Scale approximately 1:633,600 General Map Collection. Post Office Dept. (Washington).
1918. Rand McNally and Company. Relief shown by hachures.; Below scale: "Rand McNally & Co.'s sectional map of South Dakota."; In lower right margin: "539 C".; In lower left margi... Rand McNally (Chicago, Ill.?).
2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, and 2016. Gap Analysis Program (U.S.). This polygon shapefile contains combined PAD-US Fee and Easements features for South Dakota. The USGS Protected Areas Database of the United States... Gap Analysis Program (U.S.).
1921. Geological Survey (U.S.). Compiled in 1920 and 1921.; "North American datum, 1921." 81 x 127 centimeters Scale 1:500,000 General Map Collection. Geological Survey (Washington, D.C).
1929. Geological Survey (U.S.). Edition of 1921, reprinted 1929."; "National Forest names and boundaries not corrected to date."; "Compiled in 1920 and 1921. 81 x 127 centimeters ... Geological Survey (Washington, D.C).
United States, General Land Office. under the direction of I.P. Berthrong. Relief shown by hachures. General Land Office.
148. Dakota
1886. Wm. M. Bradley & Bros. Page number in margin: 52. 52 x 41 centimeters Scale approximately 1:1,520,640 General Map Collection.
1927. United States. Bureau of Public Roads. Shows various types of federal roads. Pavement types shown by letters.; "Data corrected to Dec. 31, 1927." 78 x 137 centimeters, sheets 79 x 55 cen... Bureau of Public Roads (Washington, D.C).
1929. Geological Survey (U.S.). Includes distance table.; Text on verso. 79 x 49 Centimeters Scale approximately 1:253,440 General Map Collection. The Service (Washington, D.C).