Description: This is a polygon data set depicting sites designated by Boise City as historic local landmarks and sites registered as historic by the National Register of Historic Places (NRHP) within Boise's Area of Impact. Historic landmarks are defined as a site, building, structure or object that possesses exceptional significance in history, architecture, engineering, archeology or culture at the local level and has been designated as an historic landmark through either the public hearing process as defined by the Boise City Historic Preservation Ordinance, Chapter 2-18 of the City Code or by being listed on the NRHP. The historic landmark polygons represent the area (building(s), parcel(s), or feature(s)) of historic significance for a given site. This data set was developed by Boise Planning and Development Services (PDS) staff based on available documentation of the landmark's representative area. Historic local landmarks are established by City of Boise ordinances; these sites may or may not also be registered as national historic landmarks. This data is updated as changes occur to the national registry and the local landmark listing for Boise.