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    • Nahant to Gloucester, Massachusetts Maximum Likelihood Bottom Classification (mlclass5)

    Metadata Updated: January 21, 2026

    These data are high-resolution maximum likelihood classification of the seafloor offshore of Massachusetts, from Nahant to Gloucester. Approximately 127 km² of the inner shelf were mapped in the nearshore region between the 10m and 40-m isobath.

    Access & Use Information

    Public: This dataset is intended for public access and use. 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 Created Date January 11, 2026
    Metadata Updated Date January 21, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2026
    Metadata Updated Date January 21, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_643a1c40-a9e7-4728-af6f-7fda783d1961
    Data Last Modified 2024-03-18T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-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
    Datagov Dedupe Retained 20260121130127
    Harvest Object Id 186211cf-9841-4812-ac79-9fd95221ea57
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -70.937266, 42.391023, -70.937266, 42.575257, -70.664555, 42.575257, -70.664555, 42.391023, -70.937266, 42.391023}
    Source Datajson Identifier True
    Source Hash 1849af207fc446df1050280441cfc25c9200530cc9dad6a4982ed31f30a1420b
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -70.937266, 42.391023, -70.937266, 42.575257, -70.664555, 42.575257, -70.664555, 42.391023, -70.937266, 42.391023}

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