NOAA S-57 chart cell
Lake Michigan - Michigan City Harbor, IN - MI
US4MI2AM
- Usage band
- Approach · code 4
- Current edition
- 1.3
- Features
- 263
- S-57 layers
- 41
- Published
- Dec 5, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 42.00000° N
- South
- 41.70000° N
- West
- 87.00000° W
- East
- 86.70000° W
- Center
- 41.85000° N, 86.85000° W
- Bounds area
- 242 sq nm
- Feature density
- 1.0883 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.4
- Smallest layer
- 1
- Largest layer
- 51
- Area sq km
- 829
- Features per sq km
- 0.31728
- SLCONS Shoreline construction 51
- BUISGL 32
- COALNE Coastline 21
- DEPCNT Depth contour 17
- OBSTRN Obstruction 17
- DEPARE Depth area 13
- LNDMRK 13
- BRIDGE 9
- LIGHTS Light 7
- BUAARE 6
- SBDARE Seabed area 6
- SLOGRD 6
- M_QUAL Data quality 5
- PIPSOL 5
- SLOTOP 5
- LAKARE 4
- LNDARE Land area 4
- RIVERS River 4
- SOUNDG Sounding 4
- DAYMAR 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/US4MI2AM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.003
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/US4MI2AM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2AM/1.3/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.3 | Dec 5, 2025 | metadata.json |