NOAA S-57 chart cell
Lake Superior
US4MI2QQ
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 42
- S-57 layers
- 19
- Published
- Nov 18, 2022
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 85.80000° W
- East
- 85.50000° W
- Center
- 46.65000° N, 85.65000° W
- Bounds area
- 223 sq nm
- Feature density
- 0.1886 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 2.2
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 764
- Features per sq km
- 0.05498
- DEPARE Depth area 7
- DEPCNT Depth contour 6
- BUISGL 3
- COALNE Coastline 3
- M_QUAL Data quality 3
- LAKARE 2
- RECTRC 2
- RIVERS River 2
- SBDARE Seabed area 2
- SLOTOP 2
- SOUNDG Sounding 2
- LNDARE Land area 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SEAARE Sea area 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/US4MI2QQ.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2QQ/1.1/US4MI2QQ.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2QQ/1.1/US4MI2QQ.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2QQ/1.1/US4MI2QQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2QQ/1.1/US4MI2QQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2QQ/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Nov 18, 2022 | metadata.json |