This feature class describes resources contained within any of the approximately 14 NPS cultural resource databases, classified as historic buildings, and depicted as polygons. The National Register of Historic Places requires the submission of a single UTM coordinate pair for properties under 10 acres and a series of bounding coordinate pairs for properties over 10 acres and this same criteria may be used for other NPS cultural resource programs, or modified as necessary to accurately depict the location of a building. In many cases, polygons depicting buildings represent building footprints. Based on National Register of Historic Places resource type definitions applied across all of the NPS cultural resource databases, abuilding, such as a house, barn, church, hotel, or similar construction, is created principally to shelter any form of human activity. A building may also be used to refer to a historically and functionally related unit, such as a courthouse and jail or a house and barn. Buildings include: houses, barns, stables, sheds, garages, courthouses, city halls, social halls, commercial buildings, libraries, factories, mills, train depots, stationary mobile homes, hotels, theaters, schools, stores and churches.Attribute data in this dataset are intentionally limited to those necessary for spatial data maintenance and feature level metadata necessary to document the lineage of the geography itself. Data from external database systems, such as any of the 14 NPS cultural resource databases, are intended to link with these data to provide basic feature attributes. The means to maintain unique identifiers for each historic site (CR_ID), Survey_ID, as well as unique geometries associated with that feature (Geometry_ID) are through the use of Globally Unique Identifiers (GUIDs) assigned by the database. Information about the genesis of individual points is documented by feature level metadata fields in the spatial attribute table. Both restricted and unrestricted locations of historic properties are included in this GeoDatabase, and identified in the feature level metadata. Release of locational information for cultural resources are subject to the provisions of Section 304 of the National Historic Preservation Act as Amended and Section (9)(a)(2) of the Archaeological Resources Protection Act as Amended. The metadata in the feature attribute table are compliant with the National Park Service’s Cultural Resource Spatial Data Transfer Standards. These standards were created to facilitate the exchange of spatial data within a variety of contexts, particularly Sections 106 and 110 of NHPA as well as in the context of disaster recovery events. Often locations of National Register listed properties and other historic resources eligible for the National Register are needed in these situations.