NOAA S-57 chart cell
Lake Michigan - Trout Island Shoal to Beaver Island, MI
US4MI2NQ
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 680
- S-57 layers
- 29
- Published
- Sep 17, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.90000° N
- South
- 45.60000° N
- West
- 85.80000° W
- East
- 85.50000° W
- Center
- 45.75000° N, 85.65000° W
- Bounds area
- 226 sq nm
- Feature density
- 3.0037 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 23.4
- Smallest layer
- 1
- Largest layer
- 194
- Area sq km
- 776
- Features per sq km
- 0.87573
- DEPCNT Depth contour 194
- DEPARE Depth area 191
- UWTROC Underwater rock 89
- COALNE Coastline 52
- SBDARE Seabed area 33
- LNDRGN Land region 25
- M_QUAL Data quality 15
- LNDARE Land area 13
- SEAARE Sea area 13
- BOYLAT Lateral buoy 7
- RECTRC 7
- RESARE 5
- CBLSUB 4
- LNDMRK 4
- SLCONS Shoreline construction 4
- SOUNDG Sounding 4
- BUAARE 2
- CTNARE Caution area 2
- CTRPNT 2
- LAKARE 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/US4MI2NQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2NQ/2.0/US4MI2NQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2NQ/2.0/US4MI2NQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2NQ/2.0/US4MI2NQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2NQ/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Sep 17, 2025 | metadata.json |