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NOAA ENC Direct to GIS

Published by Office of Coast Survey | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 18, 2025 | Last Modified: 2001-01-01T00:00:00.000+00:00

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.

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Nautical Charting Boundaries Environment/Hazard Hydrography Landform Marine Navigation Oceans Transportation Wildlife/Fisheries Accuracy of Data Administration Area Named Airport Airfield Anchor Berth Anchorage Area Beacon Cardinal Beacon Isolated Danger Beacon Lateral Beacon Safe Water Beacon Special Purpose General Berth Bridge Building Single Built Up Area Buoy Cardinal Buoy Isolated Danger Buoy Lateral Buoy Safe Water Buoy Special Purpose General Cable Area Cable Overhead Cable Submarine Canal Cargo Transhipment Area Causeway Caution Area Coastguard Station Coastline Compilation Scale of Data Contiguous Zone Control Point Conveyor Coverage Crane Current Non Gravitational Dam Daymark Deep Water Route Part Depth Area Depth Contour Distance Mark Dock Area Dredged Area Dry Dock Dumping Ground Dyke ENC Electronic Navigational Charts Exclusive Economic Zone Fairway Fence Wall Ferry Route Fishery Zone Fishing Facility Fishing Ground Floating Dock Fog Signal Fortified Structure Gate Gridiron Harbour Area Administrative Harbour Facility Hulk Ice Incineration Area Inshore Traffic Zone Lake Land Area Land Elevation Land Region Landmark Light Light Float Local Magnetic Anomaly Lock Basin Log Pond Magnetic Variation Marine Farm Culture Military Practice Area Mooring Warping Facility Nautical Publication Information Navigation Line Navigational System of Marks Obstruction Offshore Platform Offshore Production Area Oil Barrier Pile Pilot Boarding Place Pipeline Area Pipeline Overhead Pipeline Submarine On Land Pontoon Precautionary Area Produciton Storage Area Pylon Bridge Support Quality of Data Radar Transponder Beacon Radio Calling In Point Radio Station Railway Rapids Recommended Route Centerline Recommended Track Recommended Traffic Lane Part Rescue Station Restricted Area Retro Reflector River Road Runway Sand Waves Sea Area Named Water Area Sea Plane Landing Area Seabed Area Shoreline Construction Signal Station Traffic Signal Station Warning Silo Tank Slope Topline Sloping Ground Small Craft Facility Sounding Sounding Datum Spring Staight Territorial Sea Baseline Swept Area Territorial Sea Area Tidal Stream Flood Ebb Tidal Stream Time Series Tideway Topmark Traffic Separation Line Traffic Separation Schema Lane Part Traffic Separation Scheme Boundary Traffic Separation Zone Tunnel Two Way Route Part Underwater Awash Rock Unsurveyed Area Vegetation Vertical Datum of Data WWHGD Water Turbulence Waterfall Weed Kelp Wreck U.S. Exclusive Economic Zone U.S. territories U.S. waters DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce ocs

Complete Metadata

describedBy	http://www.s-57.com/
describedByType	application/octet-steam
identifier	gov.noaa.nmfs.inport:39973
issued	2001-01-01T00:00:00.000+00:00
landingPage	https://www.fisheries.noaa.gov/inport/item/39973
language	[]
references	[ "https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocs/dmp/pdf/39973.pdf" ]
rights	otherRestrictions, unclassified
spatial	174.61,17.57,-179.43,65.67
temporal	2001-07-11T00:00:00+00:00/2001-07-11T00:00:00+00:00

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