NOAA S-57 chart cell
Lake Huron - Harbor Beach, MI
US4MI1HK
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 550
- S-57 layers
- 33
- Published
- Jun 10, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 44.10000° N
- South
- 43.80000° N
- West
- 82.80000° W
- East
- 82.50000° W
- Center
- 43.95000° N, 82.65000° W
- Bounds area
- 234 sq nm
- Feature density
- 2.3547 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 16.7
- Smallest layer
- 1
- Largest layer
- 158
- Area sq km
- 801
- Features per sq km
- 0.68651
- UWTROC Underwater rock 158
- DEPCNT Depth contour 66
- DEPARE Depth area 56
- COALNE Coastline 43
- OBSTRN Obstruction 42
- LNDARE Land area 28
- LNDRGN Land region 25
- RIVERS River 19
- M_QUAL Data quality 17
- SLCONS Shoreline construction 15
- WRECKS Wreck 13
- SBDARE Seabed area 12
- RECTRC 9
- LIGHTS Light 7
- LNDMRK 7
- SILTNK 5
- PIPSOL 4
- SEAARE Sea area 3
- SOUNDG Sounding 3
- BCNLAT Lateral beacon 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/US4MI1HK.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI1HK/2.0/US4MI1HK.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI1HK/2.0/US4MI1HK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI1HK/2.0/US4MI1HK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI1HK/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 10, 2025 | metadata.json |