NOAA S-57 chart cell
Lake Michigan - Summer Island and Poverty Island, MI
US4MI2MN
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 199
- S-57 layers
- 25
- Published
- Sep 17, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.60000° N
- South
- 45.30000° N
- West
- 86.70000° W
- East
- 86.40000° W
- Center
- 45.45000° N, 86.55000° W
- Bounds area
- 228 sq nm
- Feature density
- 0.8743 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8
- Smallest layer
- 1
- Largest layer
- 45
- Area sq km
- 781
- Features per sq km
- 0.25491
- UWTROC Underwater rock 45
- DEPCNT Depth contour 34
- DEPARE Depth area 29
- LNDARE Land area 12
- OBSTRN Obstruction 11
- FSHFAC 10
- COALNE Coastline 9
- M_QUAL Data quality 7
- SBDARE Seabed area 7
- RECTRC 5
- SEAARE Sea area 5
- SOUNDG Sounding 5
- LNDRGN Land region 4
- WRECKS Wreck 4
- LIGHTS Light 2
- BCNSPP Special purpose beacon 1
- BOYSPP Special purpose buoy 1
- DAYMAR 1
- M_COVR Coverage 1
- M_NPUB 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/US4MI2MN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2MN/2.0/US4MI2MN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2MN/2.0/US4MI2MN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2MN/2.0/US4MI2MN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2MN/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Sep 17, 2025 | metadata.json |