NOAA S-57 chart cell
Saginaw Bay - North of Saginaw River, MI
US4MI1GG
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 430
- S-57 layers
- 44
- Published
- Mar 21, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 43.80000° N
- South
- 43.50000° N
- West
- 84.00000° W
- East
- 83.70000° W
- Center
- 43.65000° N, 83.85000° W
- Bounds area
- 235 sq nm
- Feature density
- 1.8317 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.8
- Smallest layer
- 1
- Largest layer
- 59
- Area sq km
- 805
- Features per sq km
- 0.53404
- DEPCNT Depth contour 59
- DEPARE Depth area 58
- COALNE Coastline 56
- LNDRGN Land region 25
- LIGHTS Light 23
- BOYLAT Lateral buoy 22
- BRIDGE 22
- SLCONS Shoreline construction 20
- OBSTRN Obstruction 17
- M_QUAL Data quality 16
- LNDMRK 14
- BUISGL 12
- RIVERS River 11
- LNDARE Land area 10
- SBDARE Seabed area 7
- BCNSPP Special purpose beacon 5
- SILTNK 5
- BUAARE 4
- NEWOBJ 4
- SEAARE Sea area 4
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/US4MI1GG.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI1GG/1.1/US4MI1GG.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI1GG/1.1/US4MI1GG.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI1GG/1.1/US4MI1GG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI1GG/1.1/US4MI1GG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI1GG/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Mar 21, 2024 | metadata.json |