2010. Geological Survey (U.S.). This polygon shapefile portrays the Public Land Surveys of the United States, including areas of private survey, donation land claims, and land gra... Geological Survey (U.S.).
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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.?).
1927. Rand McNally and Company. Includes index to principal cities and towns.; Relief shown by hachures. 73 x 86 centimeters Scale approximately 1:1,013,760 General Map Collection. Rand McNally & Company (Chicago, Ill).
2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.
2005. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.
1907. Shedd & Wright Mfg. Co. Townships shown in color; includes grid lines, cities, schools, churches, creameries, and bodies of water.; Alt. title from copyright statement: "S... Shedd & Wright (Austin, Minn), 1907.
2006. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.
2005. Geological Survey (U.S.). This polygon shapefile portrays the state boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map l... Geological Survey (U.S.).
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).
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).