This data set is a polygon coverage that can be used to identify the location of a stand of trees that are considered to be an important source of seed. The different seed area types collected by the Natural Resources Values Information System (NRVIS) include:
Supplementary tables can be used and are available for download from the additional documentation section. Supplementary look-up table descriptions are available in the data description document, which is available for download from the additional documentation section.
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