| Who What Where WhenWHEREWHEN | REFINE  Browse All : Atlas Map and Agriculture of Wisconsin and Michigan and Minnesota from 1931
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       Author Marbut, Curtis F. Full Title Soil Map of the United States by Curtis F. Marbut and Associates in the Soil Survery, U.S. Department of Agriculture, F.J. Marschner, Cartographer and Associate in Compilation. 1931. Soils, Plate 5, Section 2. Lith. A. Hoen & Co., Inc. Atlas of American Agriculture. Publisher U.S. Department of Agriculture 
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