State Soils

State-by-State Surveys

U.S. Department of Agriculture, Natural Resources Conservation Service, and National Cooperative Soil Survey collected soil data in 1-by 2-degree topographic quadrangle units and merged it into a seamless national dataset. It is distributed in state/territory and national extents. The soil map units are linked to attributes in the tabular data, which give the proportionate extent of the component soils and their properties.  

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The statewide surveys are hosted by Microlmages' TNTserver product. TNTserver is a Web Map Service (WMS) certified as compliant with this specification of the Open Geospatial Consortium (OGC). These state soil maps can also be combined for use with imagery, maps, and other layers from WMSs offered by other web sites.

There are many map and image layers available from thousands of web sites offering them for viewing as standard WMS layers. For example, Microlmages' WMS provides access to state orthophotos; 10-, 30-, and 90-meter digital elevation layers; and various other global geodata.

You need a WMS browser to locate and select WMS layers for viewing as composite maps in the viewers listed. Microlmages provides TNTmap FREE for Internet Explorer, Firefox, Safari, and Opera as a web application, as a downloadable executable program, and as an Apple widget via apple.com.