Farmland classification identifies map units as prime farmland,

farmland of statewide importance, farmland of local importance,

or unique farmland. It identifies the location and extent of the

soils that are best suited to food, feed, fiber, forage, and

oilseed crops. NRCS policy and procedures on prime and unique

farmlands are published in the "Federal Register," Vol. 43,

No. 21, January 31, 1978.

This data set is a digital soil survey and generally is the most

detailed level of soil geographic data developed by the National

Cooperative Soil Survey. The information was prepared by digitizing

maps, by compiling information onto a planimetric correct base

and digitizing, or by revising digitized maps using remotely

sensed and other information.

This data set consists of georeferenced digital map data and

computerized attribute data. The map data are in a soil survey area

extent format and include a detailed, field verified inventory

of soils and miscellaneous areas that normally occur in a repeatable

pattern on the landscape and that can be cartographically shown at

the scale mapped. The soil map units are linked to attributes in the

National Soil Information System relational database, which gives

the proportionate extent of the component soils and their properties.