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    • GLS Offices

    Metadata Updated: July 17, 2025

    The Great Lakes St Lawrence Seaway Development Corporation (GLS) Offices dataset was compiled January 25, 2023 from the Great Lakes St. Lawrence Seaway Development Corporation (GLS) Policy Headquarters and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Great Lakes St Lawrence Seaway Development Corporation’s (GLS) Massena, New York Operations facility (GLS) supports vessel transits through the Snell and Eisenhower locks from the opening of the navigation season in mid-March through the December 31st closing each year. GLS Operations are also responsible for all necessary maintenance performed between January 1st and mid-March to ensure reliability to vessel traffic during each St Lawrence Seaway season. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529303

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date July 16, 2025
    Metadata Created Date August 3, 2024
    Metadata Updated Date July 17, 2025
    Reference Date(s) June 2, 2023 (creation)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from National Transportation Atlas Database (NTAD) Metadata

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date July 16, 2025
    Metadata Created Date August 3, 2024
    Metadata Updated Date July 17, 2025
    Reference Date(s) June 2, 2023 (creation)
    Responsible Party Great Lakes St. Lawrence Seaway Development Corporation (GLS) Policy Headquarters (Point of Contact)
    Contact Email
    Guid GLS Offices
    Access Constraints Access Constraints: unrestricted
    Bbox East Long -74.853909619600003
    Bbox North Lat 44.967997151500001
    Bbox South Lat 44.903434112500001
    Bbox West Long -74.949118384000002
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id 919d7c2e-8d4d-4df3-a069-808e2564ac0e
    Harvest Source Id ee45e034-47c1-4a61-a3ec-de75031e6865
    Harvest Source Title National Transportation Atlas Database (NTAD) Metadata
    Licence This NTAD dataset is a work of the United States government as defined in 17 U.S.C. § 101 and as such are not protected by any U.S. copyrights. This work is available for unrestricted public use.
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-74.949118384, 44.9034341125], [-74.8539096196, 44.9034341125], [-74.8539096196, 44.9679971515], [-74.949118384, 44.9679971515], [-74.949118384, 44.9034341125]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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