Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • NOAA ENC Direct to GIS

    Metadata Updated: May 20, 2025

    NOAA's Electronic Navigational Charts (NOAA ENCs) have been developed to support the marine transportation infrastructure and coastal management. The NOAA ENCs are in S-57, a data standard developed by the International Hydrographic Organization (IHO) to be used for the exchange of digital hydrographic data. NOAA ENCs can be used in Geographic Information Systems, (GIS) allowing for broader public access. Many GIS's, however cannot read an ENC's native S-57 format to address this problem. NOAA's ENC Direct to GIS web portal provides comprehensive access to display, query, and download all available large scale NOAA ENC data in a variety of GIS/CAD formats for non-navigational purposes using Internet mapping service technology. Nautical chart features contained within an NOAA ENC provide a detailed representation of the U.S. coastal and marine environment. This data includes coastal topography, bathymetry, landmarks, geographic place names and marine boundaries. Features in an NOAA ENC are limited in that they only represent the geographic region that is depicted in that particular NOAA ENC. By aggregating nautical features from all NOAA ENCs in the creation of GIS data, a contiguous depiction of the U.S coastal and marine environment is achieved.

    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 May 15, 2025
    Metadata Created Date October 31, 2024
    Metadata Updated Date May 20, 2025
    Reference Date(s) 2001 (publication)
    Frequency Of Update weekly

    Metadata Source

    Harvested from NOS OCS

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date May 15, 2025
    Metadata Created Date October 31, 2024
    Metadata Updated Date May 20, 2025
    Reference Date(s) 2001 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:39973
    Access Constraints Cite As: Office of Coast Survey, [Date of Access]: NOAA ENC Direct to GIS [Data Date Range], https://www.fisheries.noaa.gov/inport/item/39973., Access Constraints: None., Use Constraints: NOAA ENC Direct to GIS data is not intended for navigational purposes. This data is provided for use in GIS software packages for coastal planning and research., Distribution Liability: None
    Bbox East Long 174.61
    Bbox North Lat 65.67
    Bbox South Lat 17.57
    Bbox West Long -179.43
    Coupled Resource
    Frequency Of Update weekly
    Harvest Object Id 6e24dd30-b386-4d7d-94af-d9fdc68c1312
    Harvest Source Id b7024f56-a531-4a4f-b381-12ebd50fe703
    Harvest Source Title NOS OCS
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-179.43, 17.57], [174.61, 17.57], [174.61, 65.67], [-179.43, 65.67], [-179.43, 17.57]]]}
    Progress underDevelopment
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2001-07-11

    Didn't find what you're looking for? Suggest a dataset here.