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    • Bottom Sediments -- Cape Ann to Casco Bay (FOLGER75 shapefile)

    Metadata Updated: January 6, 2026

    The reconnaissance maps upon which this data set is based show the areal distribution of the major bottom sediment types covering the sea floor off eastern New England between Cape Ann and Casco Bay. The maps were intended as a guide to the future mapping of gravel, sand, silt, and clay, and because these sediments reflect the hydraulic conditions, they are also helpful for deducing the important sediment transport mechanisms.

    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 6, 2026
    Metadata Updated Date January 6, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 6, 2026
    Metadata Updated Date January 6, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_57032ce8-4655-4f26-8edd-5d3348dd20d9
    Data Last Modified 2022-07-07T00:00:00Z
    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
    Harvest Object Id 680f8b49-6960-45c9-850c-b103d34a92f9
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -70.799200, 42.833300, -70.000000, 43.803300
    Source Datajson Identifier True
    Source Hash 742aa4e1546c3a5c885a77381d1c0119f8802d7c921f4a13fd8ed99716a1c0d9
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -70.799200, 42.833300, -70.799200, 43.803300, -70.000000, 43.803300, -70.000000, 42.833300, -70.799200, 42.833300}

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