NOAA S-57 chart cell
Lake Superior
US4MI2RI
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 119
- S-57 layers
- 24
- Published
- Dec 7, 2022
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 88.20000° W
- East
- 87.90000° W
- Center
- 46.95000° N, 88.05000° W
- Bounds area
- 221 sq nm
- Feature density
- 0.5373 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5
- Smallest layer
- 1
- Largest layer
- 24
- Area sq km
- 760
- Features per sq km
- 0.15666
- DEPARE Depth area 24
- DEPCNT Depth contour 23
- LNDARE Land area 12
- SBDARE Seabed area 9
- COALNE Coastline 6
- M_QUAL Data quality 6
- LAKARE 5
- SEAARE Sea area 5
- LNDRGN Land region 4
- RIVERS River 4
- UWTROC Underwater rock 3
- BOYLAT Lateral buoy 2
- LIGHTS Light 2
- LNDELV 2
- LNDMRK 2
- SOUNDG Sounding 2
- BUISGL 1
- C_ASSO 1
- FOGSIG 1
- M_COVR Coverage 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/US4MI2RI.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2RI/1.1/US4MI2RI.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2RI/1.1/US4MI2RI.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2RI/1.1/US4MI2RI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2RI/1.1/US4MI2RI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2RI/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Dec 7, 2022 | metadata.json |