NOAA S-57 chart cell
Lake Superior
US4MI2RK
- Usage band
- Approach · code 4
- Current edition
- 2.1
- Features
- 16
- S-57 layers
- 11
- Published
- Dec 9, 2022
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 87.60000° W
- East
- 87.30000° W
- Center
- 46.95000° N, 87.45000° W
- Bounds area
- 221 sq nm
- Feature density
- 0.0722 / sq nm
Chart Statistics
11 largest layers shown
- Average features per layer
- 1.5
- Smallest layer
- 1
- Largest layer
- 4
- Area sq km
- 760
- Features per sq km
- 0.02106
- SOUNDG Sounding 4
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- DEPARE Depth area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- RECTRC 1
- RESARE 1
- SBDARE Seabed area 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/US4MI2RK.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2RK/2.1/US4MI2RK.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2RK/2.1/US4MI2RK.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2RK/2.1/US4MI2RK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2RK/2.1/US4MI2RK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2RK/2.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.1 | Dec 9, 2022 | metadata.json |