This Natural Resources Conservation Service (NRCS) website provides essential details of the more than 20,000 soils series in the United States, as well as its Territories, Commonwealths, and Island Nations. The clear-cut descriptions can assist fieldworkers in identifying and classifying soils. Students and educators can learn about the typical pedons, soil characteristics, geographical...

Published by the US Department of Agriculture (USDA), soil surveys "furnish soil maps and interpretations needed in giving technical assistance to farmers and ranchers; in guiding other decisions about soil selection, use, and management; and in planning research." The USDA Natural Resources Conservation Service Web site provides free access to online soil surveys from many U.S. states and the...