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Click on each soil order for a high-resolution, printable PDF file. For a high resolution PDF version of the entire poster, click on the title on the right side of the poster. (All of these links are also listed below.)
To order a free copy of the poster, go to the NRCS Distribution Center website at http://nrcspad.sc.egov.usda.gov/DistributionCenter/ and search for “Twelve Orders”.
The Twelve Orders of Soil Taxonomy (PDF; 16.9 MB) -- high-resolution of poster (print at 200%, 24" x 36") Alfisols (PDF; 918 KB) Andisols (PDF; 679 KB) Aridisols (PDF; 810 KB) Entisols (PDF; 634 KB) Gelisols (PDF; 569 KB) Histosols (PDF; 750 KB) Inceptisols (PDF; 877 KB) Mollisols (PDF; 868 KB) Oxisols (PDF; 677 KB) Spodosols (PDF; 570 KB) Ultisols (PDF; 906 KB) Vertisols (PDF; 612 KB)