Wilderness recreation management areas are stored in two feature classes. WildernessRecMgtPoint represents wilderness recreation management sites so small they are displayed as points, such as campsites and day use sites. WildernessRecManagementPolygon represents wilderness recreation management areas large enough to be displayed as polygons, such as wilderness compartments, concentrated use areas, opportunity class areas, travel zones, permit zones, and special management areas. Wilderness recreation management areas are grouped hierarchically; in fact this data is often referred to as the "wilderness hierarchy." For example, a wilderness may be sub-divided into one or more compartments, which can then contain one or more concentrated use areas, which may contain multiple campsites. Although this hierarchy is not described in the GIS Core Data, it is described in the associated Infra Oracle tables. These feature classes should be edge-matched with the adjoining forest(s) when the wilderness is managed by two or more national forests. Also, where the outside boundary of these areas abut the wilderness boundary, these coverages should be coincident with the wilderness region subclasses in the Special Management Area layer of the Lands Theme.