Soil maps for the State Soil Geographic Database (STATSGO) were
developed by the NRCS. Detailed county-level soil survey data were
generalized into state based coverages and each state edge-matched to
form a seamless nation-wide database for soils. The mapping scale for
STATSGO is 1:250,000 (with the exception of alaska, which is
1:1,000,000). The level of mapping is designed to be used for broad
planning and management covering state, regional, and multi-state areas.
STATSGO data are available for the conterminous U.S., Alaska, Hawaii,
and Puerto Rico.
This data layer was produced by extracting soil order attributes from the NRCS - STATSGO data layers for the 11 western states. Map types represent most prevalent soil order for each polygon. Other attributes in this database include the 2nd, 3rd, and 4th most prevalent soil order per polygon and their respective frequency of occurence represented by percentages.