NOAA S-57 chart cell
Lake Superior
US4MI2RO
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 14
- S-57 layers
- 10
- Published
- Dec 28, 2020
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 86.40000° W
- East
- 86.10000° W
- Center
- 46.95000° N, 86.25000° W
- Bounds area
- 221 sq nm
- Feature density
- 0.0632 / sq nm
Chart Statistics
10 largest layers shown
- Average features per layer
- 1.4
- Smallest layer
- 1
- Largest layer
- 4
- Area sq km
- 760
- Features per sq km
- 0.01843
- MAGVAR Magnetic variation 4
- SOUNDG Sounding 2
- DEPARE Depth area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- RECTRC 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/US4MI2RO.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2RO/1.0/US4MI2RO.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2RO/1.0/US4MI2RO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2RO/1.0/US4MI2RO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2RO/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 28, 2020 | metadata.json |