United States Department of Agriculture
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National Hydric Soil List - Description

The National Hydric Soils List contains the soil map unit components identified as hydric in the United States.

hydsoil

The hydsoil file contains various properties pertaining to the hydric soil criteria. The following is a brief description of the contents of this file.

Element No. Data Element Descriptive Name Type
1 mapunit_symbol Mapunit symbol Varchar
2 mapunit_name Manunit name Varchar
3 compname Component name Varchar
4 component_percent Component percent Smallint
5 geomorph_feat_name Component geomorphic feature name, landform Varchar
6 interpretation_kind Component interpretation kind, hydric rating Unordered Code
7 interpretation_restriction Component interpretation restriction, hydric criteria Unordered Code