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    • USGS Hydro Cached Base Map Service from The National Map

    Metadata Updated: April 15, 2024

    ​This service is a cached overlay of a cartographic representation of the National Hydrography Dataset (NHD). ​The NHD is a comprehensive set of digital ​geo​spatial data that encodes information about naturally occurring and constructed bodies of surface water​, paths through which water flows​, ​related features​ such as stream gages and dams​​, and additional hydrologic information​. ​It is available nationwide ​in a 1:24,000-scale seamless dataset, referred to as high resolution NHD. The NHD supports many applications, such as making maps, geocoding observations, flow modeling, data maintenance and stewardship. For additional information, go to http://nhd.usgs.gov. Additional datasets are used for small-scale hydrography representation as well​, including medium resolution NHDPlus published by EPA​; USGS Small-Scale hydrography; and bathymetry from ETOPO1 Global Relief, provided by NOAA National Centers for Environmental Information, U.S. Coastal Relief Model.

    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 November 28, 2018
    Metadata Created Date November 11, 2023
    Metadata Updated Date April 15, 2024
    Reference Date(s) January 1, 2018 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from USGS Cached Base Map Services from The National Map

    Other Data Resources

    Graphic Preview

    Browse graphic showing US representation at small scale.

    Additional Metadata

    Resource Type Dataset
    Metadata Date November 28, 2018
    Metadata Created Date November 11, 2023
    Metadata Updated Date April 15, 2024
    Reference Date(s) January 1, 2018 (publication)
    Responsible Party U.S. Geological Survey, National Geospatial Technical Operations Center (Point of Contact)
    Contact Email
    Guid 7308fb7d-5d8b-4c4b-99db-2b3c95967acc_source
    Access Constraints Use Constraints: None. Acknowledgement of the originating agencies would be appreciated in products derived from these data., Access Constraints: None
    Bbox East Long -65
    Bbox North Lat 71.5
    Bbox South Lat 17.625
    Bbox West Long -179.999
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Browse graphic showing US representation at small scale.
    Graphic Preview File https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/services/base_maps/browse/basemap-hydro-cached.png
    Graphic Preview Type JPG
    Harvest Object Id 7308fb7d-5d8b-4c4b-99db-2b3c95967acc
    Harvest Source Id 093445ea-f3f8-4657-8d78-60429263e0c3
    Harvest Source Title USGS Cached Base Map Services from The National Map
    Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, 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. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-179.999, 17.625], [-65.0, 17.625], [-65.0, 71.5], [-179.999, 71.5], [-179.999, 17.625]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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