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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    National Historic Landmark District

    Metadata Updated: December 6, 2025

    The boundaries of the district polygons are both modified and unmodified pre-existing polygons provided by NPS and SHPO, as well as new, previously unmapped districts. For the previously unmapped districts, the boundaries were defined by any maps provided by the associated resource PDF, for resources that lacked a map the boundaries were drawn based on point location. The boundaries of these district polygons may not be reflective of the boundaries as interpreted by local governments.Please refer to the local ordinances for specific local boundary information.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date February 24, 2024
    Metadata Updated Date December 6, 2025

    Metadata Source

    Harvested from Connecticut Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 24, 2024
    Metadata Updated Date December 6, 2025
    Publisher State of Connecticut
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=ba43ac581f064531a90637b657da6999&sublayer=0
    Data First Published 2023-04-10
    Data Last Modified 2025-12-03
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.ct.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 195f4917-b01c-4f79-89e1-ee388ef6d750
    Harvest Source Id 36c82f29-4f54-495e-a878-2c07320bf10c
    Harvest Source Title Connecticut Data.json
    Homepage URL https://geodata.ct.gov/datasets/ctmaps::national-historic-landmark-district
    License https://creativecommons.org/licenses/by-nc-nd/4.0
    Metadata Type geospatial
    Old Spatial -73.5318,41.1394,-72.5157,41.7717
    Source Datajson Identifier True
    Source Hash 2560ef6af18ec73a3e195ee82a8e69cc7b9cc78b65d0c60c5b4445ebc64008d9
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -73.5318, 41.1394, -73.5318, 41.7717, -72.5157, 41.7717, -72.5157, 41.1394, -73.5318, 41.1394}

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