Soil Survey Geographic Database (SSURGO)
The Soil Survey Geographic Database (SSURGO) is a detailed digital soil-survey dataset produced by the USDA Natural Resources Conservation Service (NRCS). It provides spatial map units and associated tabular attributes describing the physical and chemical properties of soils across the United States, generally at scales from 1:12,000 to 1:63,360. SSURGO is the most detailed level of the USDA soil-survey series and is widely used in land management, agriculture, and environmental modeling. It serves as an upstream data source for KnowWhereGraph.
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