NOAA S-57 chart cell
Lake Superior - Grand Island Harbor to Miners Castle Point, MI
US4MI2PN
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 217
- S-57 layers
- 35
- Published
- Feb 23, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.50000° N
- South
- 46.20000° N
- West
- 86.70000° W
- East
- 86.40000° W
- Center
- 46.35000° N, 86.55000° W
- Bounds area
- 224 sq nm
- Feature density
- 0.969 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.2
- Smallest layer
- 1
- Largest layer
- 56
- Area sq km
- 768
- Features per sq km
- 0.28251
- DEPARE Depth area 56
- DEPCNT Depth contour 53
- OBSTRN Obstruction 11
- LNDRGN Land region 8
- LIGHTS Light 7
- WRECKS Wreck 7
- BOYLAT Lateral buoy 6
- M_QUAL Data quality 6
- SEAARE Sea area 6
- SLCONS Shoreline construction 6
- COALNE Coastline 4
- RIVERS River 4
- UWTROC Underwater rock 4
- BCNSPP Special purpose beacon 3
- LNDMRK 3
- MORFAC 3
- SBDARE Seabed area 3
- BUISGL 2
- CBLSUB 2
- FOGSIG 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/US4MI2PN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2PN/3.0/US4MI2PN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2PN/3.0/US4MI2PN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2PN/3.0/US4MI2PN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2PN/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Feb 23, 2026 | metadata.json |