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    • Cambrian-Ordovician aquifer system

    Metadata Updated: January 22, 2026

    This data set represents the extent of the Cambrian-Ordovician aquifer system in the states of Wisconsin, Michigan, Minnesota, Iowa, and Illinois.

    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 22, 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 22, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_ed53dcbe-62c1-4024-9701-3128c2a0edc9
    Data Last Modified 2020-11-17T00:00:00Z
    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 20260122132010
    Harvest Object Id e562688f-7583-4925-b207-90566c359ebf
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -99.000000, 37.000000, -99.000000, 48.392158, -82.920461, 48.392158, -82.920461, 37.000000, -99.000000, 37.000000}
    Source Datajson Identifier True
    Source Hash 53412938d09eff302d51093d70ee580c3377fbde536df4d3f866598f1b1336f2
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -99.000000, 37.000000, -99.000000, 48.392158, -82.920461, 48.392158, -82.920461, 37.000000, -99.000000, 37.000000}

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