NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan 2025-07-24 revision 2026-03-05 publication 11.6 ENC cell completed continual dataset coast guard district: 9 state: IL state: IN state: MI state: WI region: 13 500000 eng panel number: 1; type: E 44.4400519 -87.501921 44.4347583 -88.0416667 45.99998 -88.0836772 45.99998 -88.6666666 41.375 -88.6666666 41.375 -84.5 42.8985292 -84.5 42.88682 -85.07073 44.4338158 -85.1521568 44.4439047 -86.247423 44.4443564 -86.6054829 44.4439242 -86.7296497 44.4403633 -87.4683695 44.4403253 -87.4740335 44.4400519 -87.501921 dataset 0.13488292694091797 https://www.charts.noaa.gov/ENCs/US2MI01M.zip zipfile date and time: 2026-03-11T05:18:08Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Little Calumet River, IL 2025-07-18 revision 2025-07-18 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 41.4 -87.6 41.7 -87.6 41.7 -87.9 41.4 -87.9 41.4 -87.6 dataset 0.009214401245117188 https://www.charts.noaa.gov/ENCs/US4IL1WX.zip zipfile date and time: 2026-03-11T05:14:12Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Chicago Harbor to Chicago River, IL 2025-07-18 revision 2025-12-17 publication 2.2 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 41.7 -87.6383273 41.7 -87.6 42 -87.6 42 -87.9 41.7 -87.9 41.7 -87.6383273 dataset 0.10489559173583984 https://www.charts.noaa.gov/ENCs/US4IL1XX.zip zipfile date and time: 2026-03-11T05:14:12Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Calumet River to Chicago Harbor Entrance, IL 2025-07-18 revision 2025-12-17 publication 2.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 41.7 -87.5515575 41.7 -87.3 42 -87.3 42 -87.6 41.7 -87.6 41.7 -87.5515575 dataset 0.14695262908935547 https://www.charts.noaa.gov/ENCs/US4IL1XY.zip zipfile date and time: 2026-03-11T05:14:12Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - North Shore Channel to Lake Forest, IL 2025-07-18 revision 2025-12-09 publication 2.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42 -87.7458554 42 -87.6 42.3 -87.6 42.3 -87.9 42 -87.9 42 -87.7458554 dataset 0.08397769927978516 https://www.charts.noaa.gov/ENCs/US4IL1YX.zip zipfile date and time: 2026-03-11T05:14:12Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Offshore of Evanston, IL 2025-05-19 revision 2025-05-19 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42 -87.592482 42 -87.3 42.3 -87.3 42.3 -87.6 42 -87.6 42 -87.592482 dataset 0.014492988586425781 https://www.charts.noaa.gov/ENCs/US4IL1YY.zip zipfile date and time: 2026-03-11T05:14:12Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Offshore of Burns International Harbor, IN 2025-05-19 revision 2025-05-19 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42 -87.2729356 42 -87 42.3 -87 42.3 -87.3 42 -87.3 42 -87.2729356 dataset 0.011002540588378906 https://www.charts.noaa.gov/ENCs/US4IL1YZ.zip zipfile date and time: 2026-03-11T05:14:11Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Kenosha to Waukegan, IL 2025-07-18 revision 2025-07-18 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42.3 -87.8986674 42.3 -87.6 42.6 -87.6 42.6 -87.9 42.3 -87.9 42.3 -87.8986674 dataset 0.05429553985595703 https://www.charts.noaa.gov/ENCs/US4IL1ZX.zip zipfile date and time: 2026-03-11T05:14:11Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Offshore of Waukegan, IL 2025-05-19 revision 2025-05-19 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42.3 -87.5299888 42.3 -87.3 42.6 -87.3 42.6 -87.6 42.3 -87.6 42.3 -87.5299888 dataset 0.011187553405761719 https://www.charts.noaa.gov/ENCs/US4IL1ZY.zip zipfile date and time: 2026-03-11T05:14:11Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Lake Center Offshore of Waukegan, IL 2025-05-19 revision 2025-05-19 publication 2.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 42.3 -87.292644 42.3 -87 42.6 -87 42.6 -87.3 42.3 -87.3 42.3 -87.292644 dataset 0.010730743408203125 https://www.charts.noaa.gov/ENCs/US4IL1ZZ.zip zipfile date and time: 2026-03-11T05:14:11Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Indiana Harbor to Gary Harbor, IN 2025-07-18 revision 2025-07-30 publication 2.2 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 90000 eng panel number: 1; type: E 41.4 -87.5482985 41.4 -87.3 41.7 -87.3 41.7 -87.6 41.4 -87.6 41.4 -87.5482985 dataset 0.07878398895263672 https://www.charts.noaa.gov/ENCs/US4IN1CC.zip zipfile date and time: 2026-03-11T05:14:11Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Calumet River, IL 2024-12-31 revision 2026-01-21 publication 1.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.625 -87.5882584 41.625 -87.525 41.7 -87.525 41.7 -87.6 41.625 -87.6 41.625 -87.5882584 dataset 0.13617229461669922 https://www.charts.noaa.gov/ENCs/US5CHIGM.zip zipfile date and time: 2026-03-11T05:09:22Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Calumet Harbor, IL 2024-12-31 revision 2025-12-17 publication 1.2 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.7044675 -87.6 41.7 -87.6 41.7 -87.525 41.775 -87.525 41.775 -87.6 41.7044675 -87.6 dataset 0.09967994689941406 https://www.charts.noaa.gov/ENCs/US5CHIHM.zip zipfile date and time: 2026-03-11T05:09:21Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Sanitary and Ship Canal, IL 2024-12-30 revision 2024-12-30 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.8451439 -87.675 41.85 -87.675 41.85 -87.75 41.775 -87.75 41.775 -87.675 41.8451439 -87.675 dataset 0.02349853515625 https://www.charts.noaa.gov/ENCs/US5CHIIK.zip zipfile date and time: 2026-03-11T05:09:20Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - South Branch Chicago River, IL 2024-12-31 revision 2025-12-17 publication 1.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.775 -87.615039 41.775 -87.6 41.85 -87.6 41.85 -87.675 41.775 -87.675 41.775 -87.615039 dataset 0.06214618682861328 https://www.charts.noaa.gov/ENCs/US5CHIIL.zip zipfile date and time: 2026-03-11T05:09:20Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Jackson Park Harbor, IL 2024-12-31 revision 2024-12-31 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.8195843 -87.6 41.775 -87.6 41.775 -87.525 41.85 -87.525 41.85 -87.6 41.8195843 -87.6 dataset 0.09668540954589844 https://www.charts.noaa.gov/ENCs/US5CHIIM.zip zipfile date and time: 2026-03-11T05:09:20Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Chicago, IL 2024-12-31 revision 2025-07-14 publication 1.3 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.9239757 -87.675 41.85 -87.675 41.85 -87.6 41.925 -87.6 41.925 -87.675 41.9239757 -87.675 dataset 0.2275533676147461 https://www.charts.noaa.gov/ENCs/US5CHIJL.zip zipfile date and time: 2026-03-11T05:09:19Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Approaches to Chicago, IL 2024-12-31 revision 2025-12-17 publication 1.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.85 -87.594735 41.85 -87.525 41.925 -87.525 41.925 -87.6 41.85 -87.6 41.85 -87.594735 dataset 0.08024024963378906 https://www.charts.noaa.gov/ENCs/US5CHIJM.zip zipfile date and time: 2026-03-11T05:09:19Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - North Branch Chicago River, IL 2024-12-31 revision 2024-12-31 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.9914736 -87.75 41.925 -87.75 41.925 -87.675 42 -87.675 42 -87.75 41.9914736 -87.75 dataset 0.0416717529296875 https://www.charts.noaa.gov/ENCs/US5CHIKK.zip zipfile date and time: 2026-03-11T05:09:19Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Montrose, Belmont, & Diversey Harbors, IL 2024-12-31 revision 2025-11-12 publication 1.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 41.9251716 -87.675 41.925 -87.675 41.925 -87.6 42 -87.6 42 -87.675 41.9251716 -87.675 dataset 0.13065814971923828 https://www.charts.noaa.gov/ENCs/US5CHIKL.zip zipfile date and time: 2026-03-11T05:09:19Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Evanston to Wilmette, IL 2024-12-30 revision 2024-12-30 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 42.0251625 -87.75 42 -87.75 42 -87.675 42.075 -87.675 42.075 -87.75 42.0251625 -87.75 dataset 0.031350135803222656 https://www.charts.noaa.gov/ENCs/US5CHILK.zip zipfile date and time: 2026-03-11T05:09:19Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Evanston, IL 2024-12-31 revision 2024-12-31 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 42.0232498 -87.675 42 -87.675 42 -87.6 42.075 -87.6 42.075 -87.675 42.0232498 -87.675 dataset 0.05938434600830078 https://www.charts.noaa.gov/ENCs/US5CHILL.zip zipfile date and time: 2026-03-11T05:09:18Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Wilmette, IL 2024-12-31 revision 2025-12-09 publication 1.1 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 42.1397214 -87.75 42.075 -87.75 42.075 -87.675 42.15 -87.675 42.15 -87.75 42.1397214 -87.75 dataset 0.033492088317871094 https://www.charts.noaa.gov/ENCs/US5CHIMK.zip zipfile date and time: 2026-03-11T05:09:18Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL dataset NOAA ENC National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner 2026-03-11T05:24:14Z Lake Michigan - Waukegen Harbor, IL 2025-02-04 revision 2025-02-04 publication 1.0 ENC cell completed continual dataset coast guard district: 9 state: IL region: 13 12000 eng panel number: 1; type: E 42.3499077 -87.8263444 42.3499077 -87.7906462 42.3692049 -87.7906462 42.3692049 -87.8322295 42.3499077 -87.8322295 42.3499077 -87.8263444 dataset 0.062041282653808594 https://www.charts.noaa.gov/ENCs/US5IL33C.zip zipfile date and time: 2026-03-11T05:06:53Z dataset NOAA paper chart \r\n NOAA ENC Product Catalog IL eng utf8 series NOAA ENC product series National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) http://ocsdata.ncd.noaa.gov/idrs/inquiry.aspx NOAA's Nautical Inquiry Webpage publisher ENC Product Catalog IL ISO19115 2003/Cor.1:2006 2026-03-11T01:29:34.6760908-04:00 publication 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. 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.For each ENC there is information that includes the tags <name>, <lname> (title), <src_chart> (equivalent raster chart number), <cscale> (equivalent raster chart scale), <coast_guard_districts> and <states>. Each ENC dataset is available for download as a .ZIP file. The <zipfile_location> tag includes the URL of download location, and the <zipfile_datetime> tag includes the date and time that the .ZIP file was created. ENCs have edition numbers and dates. The <edtn> tag is the Edition Number, the <updn> tag is the Update Number, the <uadt> tag is the Update Application date and the <isdt> tag is the Issue Date. The Update Application Date is the date that a Base Cell (000 file extension) is created. The Issue Date is the date that an Update Patch (001, 002, etc., file extension) is created. Other information for each ENC includes the <nm_agency> tag which designates either the National Geospatial-Intelligence Agency (NGA) or U.S. Coast Guard, and the tags <doc> and <date> which represent the latest published document through which the ENC is cleared. The <cov> tag includes information describing the geographic coverage of the ENC. National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) owner vector eng oceans S57 - IHO Transfer Standard for Digital Hydrographic Data 3.1 ENC - Electronic Navigational Chart Product Specification