NOAA S-57 chart cell
Lake Superior - Granite Point to Marquette, MI
US4MI2QK
- Usage band
- Approach · code 4
- Current edition
- 5.0
- Features
- 310
- S-57 layers
- 38
- Published
- Jun 8, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 87.60000° W
- East
- 87.30000° W
- Center
- 46.65000° N, 87.45000° W
- Bounds area
- 223 sq nm
- Feature density
- 1.3919 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.2
- Smallest layer
- 1
- Largest layer
- 69
- Area sq km
- 764
- Features per sq km
- 0.40582
- DEPARE Depth area 69
- DEPCNT Depth contour 55
- SLCONS Shoreline construction 26
- UWTROC Underwater rock 20
- LNDARE Land area 17
- COALNE Coastline 13
- LIGHTS Light 12
- LNDRGN Land region 9
- RIVERS River 9
- SBDARE Seabed area 9
- LNDMRK 7
- M_QUAL Data quality 7
- BOYLAT Lateral buoy 5
- OBSTRN Obstruction 5
- SOUNDG Sounding 5
- PIPSOL 4
- RECTRC 4
- LAKARE 3
- SEAARE Sea area 3
- BOYSPP Special purpose buoy 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/US4MI2QK.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2QK/5.0/US4MI2QK.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2QK/5.0/US4MI2QK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2QK/5.0/US4MI2QK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2QK/5.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 5.0 | Jun 8, 2026 | metadata.json |