Soils: Special Point Features

U.S. Department of Agriculture, Natural Resources Conservation Service - Rhode Island State Office

Special soil point features display locations of features too small to delineate at the mapping scale used by the Rhode Island Soil Survey Program, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes (via the MUKEY attribute field) in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

This dataset depicts information about the kinds and distribution of soils on the landscape.

The attribute data contained in the RIGIS soils data (points, lines, and polygons - version 16) shapefile has been revised from the 2015 RIGIS soils data. This 2016 dataset contains changes to the spatial data (points, lines, polygons) for numerous areas throughout RI, particularly the following USGS Topo-quadrangles: East Killingly, Clayville, North Scituate, Oneco, Coventry and Crompton. The coastal pond of Great Salt Pond are also included. This data is NOT the official USDA-NRCS SSURGO Soils Data for Rhode Island (although the spatial data contained is identical). The attribute information on the RIGIS soil data is NOT the same as the “official” soils data; if you need official soils data please use the Web Soil Survey (

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