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    • EPA Office of Water (OW): NHDPlus v21+AK Beta Catchment Fabric Twelve-Digit Subwatersheds

    Metadata Updated: February 25, 2025

    This dataset contains twelve-digit hydrologic subwatershed units aggregated from the NHDPlus v21+AK Beta State Catchment Fabric. These units express the Catchment Crosswalk logic used to assign NHDPlus catchments to HUC12 units and are not representative of the Watershed Boundary Dataset or other hydrologic unit systems.

    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 June 19, 2020
    Metadata Created Date February 25, 2025
    Metadata Updated Date February 25, 2025
    Reference Date(s) June 8, 2020 (publication)
    Frequency Of Update irregular

    Metadata Source

    Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 19, 2020
    Metadata Created Date February 25, 2025
    Metadata Updated Date February 25, 2025
    Reference Date(s) June 8, 2020 (publication)
    Responsible Party U.S. Environmental Protection Agency (Point of Contact)
    Contact Email
    Guid epa.gov:93766FED-6DE0-4852-B880-4EFF6C93150F
    Access Constraints Use Constraints: None. Please check sources, scale, accuracy, correctness and other available information. Please confirm that you are using the most recent copy of both data and metadata., Access Constraints: None
    Bbox East Long 180.0
    Bbox North Lat 90.0
    Bbox South Lat -90.0
    Bbox West Long -180.0
    Coupled Resource
    Frequency Of Update irregular
    Harvest Object Id 8cfaa572-ae8d-40fc-979e-53c4e9079479
    Harvest Source Id 9b3cd81e-5515-4bb7-ad3c-5ae44de9b4bd
    Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
    Licence Although these data have been processed successfully on a computer system at the Environmental Protection Agency, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Environmental Protection Agency shall not be held liable for improper or incorrect use of the data described and/or contained herein.
    Lineage This lineage was generated by the FGDC CSDGM to 19139 transformation
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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