Approximately 57 soil series

Online Information

• http://soils.usda.gov/gallery/– Excellent pictures and brief descriptions of all the soil order and

maps of their distribution in the continental United States• http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdnamequery.cgi

– If you know the soil series name, type in the blank space to retrieve taxonomy plus descriptions

• http://ssldata.nrcs.usda.gov/querypage.asp– Given the soil series name and county in which it is located you

can download data describing soil chemical and physical properties (not all soil series have been measured)

• http://www.fao.org/AG/agl/agll/prtsoil.stm– Portal to information on the FAO soil classification system

• http://soil.gsfc.nasa.gov/links/tax.htm– Links to other soil classification systems