Soil map, Iowa, Polk County sheet /

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Bibliographic Details
Corporate author / creator:United States. Bureau of Soils.
Imprint:[Washington] : The Bureau, 1918.
Description:1 map : col. ; 67 x 66 cm.
Cartographic data:Scale [1:63,360]. 1 in. = 1 mile.
Format: Map U.S. Federal Government Document Print
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Hidden Bibliographic Details
Other authors / contributors:Iowa State College. Agricultural Experiment Station.
Notes:Relief shown by contours.
Shows distribution of soil types by colors and symbols.
In lower margin: A. Hoen & Co. Balto., MD.

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