NOAA S-57 chart cell
Lake Huron - North Channel, Drummond Island, MI
US4MI1OH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 318
- S-57 layers
- 29
- Published
- Jun 25, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.20000° N
- South
- 45.90000° N
- West
- 83.70000° W
- East
- 83.40000° W
- Center
- 46.05000° N, 83.55000° W
- Bounds area
- 225 sq nm
- Feature density
- 1.4123 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 11
- Smallest layer
- 1
- Largest layer
- 82
- Area sq km
- 772
- Features per sq km
- 0.41175
- DEPARE Depth area 82
- DEPCNT Depth contour 82
- UWTROC Underwater rock 45
- SEAARE Sea area 16
- COALNE Coastline 13
- LAKARE 10
- LNDARE Land area 10
- LNDRGN Land region 10
- RIVERS River 9
- OBSTRN Obstruction 7
- BUISGL 4
- CTRPNT 3
- M_QUAL Data quality 3
- SBDARE Seabed area 3
- SOUNDG Sounding 3
- BUAARE 2
- M_COVR Coverage 2
- RESARE 2
- WEDKLP 2
- BOYLAT Lateral buoy 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/US4MI1OH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI1OH/1.0/US4MI1OH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI1OH/1.0/US4MI1OH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI1OH/1.0/US4MI1OH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI1OH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 25, 2024 | metadata.json |