NOAA S-57 chart cell
Lake Superior
US4MI2RH
- Usage band
- Approach · code 4
- Current edition
- 2.1
- Features
- 307
- S-57 layers
- 38
- Published
- May 21, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 88.50000° W
- East
- 88.20000° W
- Center
- 46.95000° N, 88.35000° W
- Bounds area
- 221 sq nm
- Feature density
- 1.3862 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.1
- Smallest layer
- 1
- Largest layer
- 55
- Area sq km
- 760
- Features per sq km
- 0.40414
- DEPARE Depth area 55
- DEPCNT Depth contour 52
- COALNE Coastline 29
- LNDRGN Land region 20
- LNDARE Land area 19
- RIVERS River 19
- OBSTRN Obstruction 16
- SBDARE Seabed area 11
- SEAARE Sea area 10
- M_QUAL Data quality 9
- PILPNT 8
- BUAARE 7
- BUISGL 7
- SLCONS Shoreline construction 7
- LIGHTS Light 5
- UWTROC Underwater rock 5
- BOYSPP Special purpose buoy 2
- LAKARE 2
- LNDMRK 2
- RESARE 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/US4MI2RH.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2RH/2.1/US4MI2RH.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2RH/2.1/US4MI2RH.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2RH/2.1/US4MI2RH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2RH/2.1/US4MI2RH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2RH/2.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.1 | May 21, 2026 | metadata.json |