NOAA S-57 chart cell
Lake Superior - Tahquamenon Bay to Naomikong Point, MI
US4MI2PS
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 76
- S-57 layers
- 18
- Published
- Apr 1, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.50000° N
- South
- 46.20000° N
- West
- 85.20000° W
- East
- 84.90000° W
- Center
- 46.35000° N, 85.05000° W
- Bounds area
- 224 sq nm
- Feature density
- 0.3394 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 4.2
- Smallest layer
- 1
- Largest layer
- 18
- Area sq km
- 768
- Features per sq km
- 0.09894
- DEPCNT Depth contour 18
- DEPARE Depth area 16
- UWTROC Underwater rock 14
- RIVERS River 4
- SLOTOP 4
- OBSTRN Obstruction 3
- SEAARE Sea area 3
- COALNE Coastline 2
- LNDARE Land area 2
- LNDRGN Land region 2
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SBDARE Seabed area 1
- SOUNDG Sounding 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/US4MI2PS.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2PS/2.0/US4MI2PS.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2PS/2.0/US4MI2PS.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2PS/2.0/US4MI2PS.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2PS/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 1, 2026 | metadata.json |