NOAA S-57 chart cell
Lake Michigan - Gull Island, MI
US4MI2NP
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 97
- S-57 layers
- 20
- Published
- Sep 17, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.90000° N
- South
- 45.60000° N
- West
- 86.10000° W
- East
- 85.80000° W
- Center
- 45.75000° N, 85.95000° W
- Bounds area
- 226 sq nm
- Feature density
- 0.4285 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.9
- Smallest layer
- 1
- Largest layer
- 26
- Area sq km
- 776
- Features per sq km
- 0.12492
- DEPARE Depth area 26
- DEPCNT Depth contour 25
- SBDARE Seabed area 13
- RECTRC 7
- SOUNDG Sounding 4
- UWTROC Underwater rock 4
- SEAARE Sea area 3
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- BCNSPP Special purpose beacon 1
- COALNE Coastline 1
- DAYMAR 1
- LIGHTS Light 1
- LNDARE Land area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- OBSTRN Obstruction 1
- RESARE 1
- WRECKS Wreck 1
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/US4MI2NP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2NP/2.0/US4MI2NP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2NP/2.0/US4MI2NP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2NP/2.0/US4MI2NP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2NP/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Sep 17, 2025 | metadata.json |