NOAA S-57 chart cell
Lake Huron - Saint Martin Bay to Marquette Island, MI
US4MI1OE
- Usage band
- Approach · code 4
- Current edition
- 1.3
- Features
- 704
- S-57 layers
- 34
- Published
- Dec 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.20000° N
- South
- 45.90000° N
- West
- 84.60000° W
- East
- 84.30000° W
- Center
- 46.05000° N, 84.45000° W
- Bounds area
- 225 sq nm
- Feature density
- 3.1265 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 20.7
- Smallest layer
- 1
- Largest layer
- 134
- Area sq km
- 772
- Features per sq km
- 0.91155
- UWTROC Underwater rock 134
- DEPCNT Depth contour 128
- DEPARE Depth area 120
- LNDARE Land area 78
- COALNE Coastline 55
- LNDRGN Land region 30
- CBLSUB 17
- OBSTRN Obstruction 17
- RIVERS River 14
- BOYLAT Lateral buoy 13
- SEAARE Sea area 13
- M_QUAL Data quality 12
- SBDARE Seabed area 12
- LIGHTS Light 11
- SOUNDG Sounding 8
- CBLARE 5
- PILPNT 5
- WEDKLP 5
- SLCONS Shoreline construction 4
- BUISGL 3
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4MI1OE.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.003
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/US4MI1OE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI1OE/1.3/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.3 | Dec 1, 2025 | metadata.json |