United States Department of Agriculture
Natural Resources Conservation Service		 Soils Go to Accessibility Information
Skip to Page Content





The Twelve Orders of Soil Taxonomy

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 in the center of the poster.  (All of these links are also listed below.)

Alfisols Andisols Aridisols Entisols Gelisols Histosols Inceptisols Mollisols Oxisols Spodosols Ultisols Vertisols The 12 Orders of Soil Taxonomy high-resolution poster Twelve Orders of Soil Taxonomy poster

These documents require Adobe Acrobat.

Adobe Acrobat DocumentThe Twelve Orders of Soil Taxonomy (6197 KB) -- high-resolution of poster (print at 200%, 26"x36")
Adobe Acrobat DocumentAlfisols (918 KB)
Adobe Acrobat DocumentAndisols (679 KB)
Adobe Acrobat DocumentAridisols (810 KB)
Adobe Acrobat DocumentEntisols (634 KB)
Adobe Acrobat DocumentGelisols (569 KB)
Adobe Acrobat DocumentHistosols (750 KB)
Adobe Acrobat DocumentInceptisols (877 KB)
Adobe Acrobat DocumentMollisols (868 KB)
Adobe Acrobat DocumentOxisols (677 KB)
Adobe Acrobat DocumentSpodosols (570 KB)
Adobe Acrobat DocumentUltisols (906 KB)
Adobe Acrobat DocumentVertisols (612 KB)