NOAA S-57 chart cell
Lake Superior - Keweenaw Bay - L'Anse Bay, MI
US4MI2QH
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 97
- S-57 layers
- 28
- Published
- Jun 8, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 88.50000° W
- East
- 88.20000° W
- Center
- 46.65000° N, 88.35000° W
- Bounds area
- 223 sq nm
- Feature density
- 0.4355 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 3.5
- Smallest layer
- 1
- Largest layer
- 28
- Area sq km
- 764
- Features per sq km
- 0.12698
- DEPARE Depth area 28
- DEPCNT Depth contour 20
- LAKARE 6
- SLCONS Shoreline construction 4
- COALNE Coastline 3
- LIGHTS Light 3
- PIPSOL 3
- SEAARE Sea area 3
- BOYLAT Lateral buoy 2
- BUAARE 2
- DAYMAR 2
- LNDMRK 2
- LNDRGN Land region 2
- MAGVAR Magnetic variation 2
- OBSTRN Obstruction 2
- BCNLAT Lateral beacon 1
- BCNSPP Special purpose beacon 1
- BOYSPP Special purpose buoy 1
- BUISGL 1
- LNDARE Land 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/US4MI2QH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI2QH/3.0/US4MI2QH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2QH/3.0/US4MI2QH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2QH/3.0/US4MI2QH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2QH/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Jun 8, 2026 | metadata.json |