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This is a Cook County Feature class of Unincorporated Zoning District Boundaries (Aggregate). This data is provided by the Cook County Dept. Of Building and Zoning and is maintained by the Cook County Zoning Board of Appeals. Only unincorporated district boundaries are available, please contact specific municipalities for questions regarding incorporated municipal zoning districts.

A mapped dataset and layer of individual sites and districts that the County has designated as historic, or which have been listed in the National Register of Historic Places. The National Register is the federal list of buildings, districts, and other objects significant to the nation’s history or architecture. For more information, see http://www.nps.gov/nr/faq.htm#nr. The Master Plan for Historic Preservation is the County's preservation planning document that includes the list of all county-designated historic sites and districts. Sites and districts which have been added to the Master Plan have been found to be of special historic or architectural significance and receive protection under the Historic Preservation Ordinance, Chapter 24A of the County Code. For more information, see http://montgomeryplanning.org/historic/research.shtm. For field descriptions, see attachment on the About tab. Source: M-NCPPC Planning

Cook County GIS Dept map of Bloom Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Orland Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Leyden, Norwood Park & Jefferson Townships in a pdf format. Includes streets and municipalities.

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A mapped dataset and layer of sites and districts identified in the Locational Atlas and Inventory of Historic Sites in Montgomery County, Maryland. The Location Atlas is a list resources that are potentially historic. Resources listed in the Atlas are protected from demolition or "substantial alteration" under Chapter 24A of the County Code. For more information, see http://montgomeryplanning.org/historic/research.shtm. Source: M-NCPPC Planning. https://montgomeryplans.org/arcgis/rest/services/Overlays/HistoricPres_LA_Sites_and_Districts/MapServer/0

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Cook County GIS Dept map of Barrington Township in a pdf format. Includes streets and municipalities.