NOAA S-57 chart cell
Lake Michigan - Port Inland, MI
US4MI2OP
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 137
- S-57 layers
- 34
- Published
- Jan 5, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.20000° N
- South
- 45.90000° N
- West
- 86.10000° W
- East
- 85.80000° W
- Center
- 46.05000° N, 85.95000° W
- Bounds area
- 225 sq nm
- Feature density
- 0.6084 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4
- Smallest layer
- 1
- Largest layer
- 23
- Area sq km
- 772
- Features per sq km
- 0.17739
- DEPARE Depth area 23
- DEPCNT Depth contour 23
- RIVERS River 10
- BUISGL 7
- COALNE Coastline 7
- LIGHTS Light 6
- RECTRC 6
- SBDARE Seabed area 5
- BCNSPP Special purpose beacon 4
- DAYMAR 4
- M_QUAL Data quality 4
- UWTROC Underwater rock 4
- LNDRGN Land region 3
- OBSTRN Obstruction 3
- BUAARE 2
- C_AGGR 2
- LAKARE 2
- LNDARE Land area 2
- MAGVAR Magnetic variation 2
- NAVLNE 2
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/US4MI2OP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2OP/2.0/US4MI2OP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2OP/2.0/US4MI2OP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2OP/2.0/US4MI2OP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2OP/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jan 5, 2026 | metadata.json |