Irregular Vegetation Classes along the Natchez Trace Parkway 2004

This dataset consists of a map depicting the distribution of irregular classes along the Natchez Trace Parkway. Irregular classes are those forest alliances that were usually represented by one or two field sites. In addition, these alliances did not align with any of the major forest classes and for the most part did not contain species that were common to other alliances. Ground-based vegetation classification was provided by the National Park Service and mapped by the U.S. Geological Survey, National Wetlands Research Center.