NOAA S-57 chart cell
Lake Michigan - Grand Traverse Bay, West Arm, MI
US4MI2KQ
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 794
- S-57 layers
- 46
- Published
- Oct 28, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.00000° N
- South
- 44.70000° N
- West
- 85.80000° W
- East
- 85.50000° W
- Center
- 44.85000° N, 85.65000° W
- Bounds area
- 230 sq nm
- Feature density
- 3.452 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 17.3
- Smallest layer
- 1
- Largest layer
- 114
- Area sq km
- 789
- Features per sq km
- 1.00644
- SLCONS Shoreline construction 114
- DEPCNT Depth contour 99
- DEPARE Depth area 89
- OBSTRN Obstruction 62
- COALNE Coastline 48
- UWTROC Underwater rock 36
- FSHFAC 34
- LIGHTS Light 33
- SLOTOP 31
- BUISGL 29
- SBDARE Seabed area 26
- PONTON 24
- LNDMRK 19
- LNDRGN Land region 14
- RIVERS River 13
- LNDARE Land area 11
- WEDKLP 11
- OFSPLF 10
- BCNLAT Lateral beacon 8
- BOYLAT Lateral buoy 8
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/US4MI2KQ.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2KQ/1.1/US4MI2KQ.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2KQ/1.1/US4MI2KQ.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2KQ/1.1/US4MI2KQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2KQ/1.1/US4MI2KQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2KQ/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Oct 28, 2024 | metadata.json |