NOAA S-57 chart cell
Saginaw River, MI
US4MI1FG
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 63
- S-57 layers
- 21
- Published
- Oct 19, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 43.50000° N
- South
- 43.20000° N
- West
- 84.00000° W
- East
- 83.70000° W
- Center
- 43.35000° N, 83.85000° W
- Bounds area
- 236 sq nm
- Feature density
- 0.267 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 3
- Smallest layer
- 1
- Largest layer
- 10
- Area sq km
- 809
- Features per sq km
- 0.07786
- BRIDGE 10
- BUISGL 6
- COALNE Coastline 6
- LNDARE Land area 6
- RIVERS River 6
- BUAARE 5
- LAKARE 3
- PYLONS 3
- SLCONS Shoreline construction 3
- LIGHTS Light 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- CTNARE Caution area 1
- DEPARE Depth area 1
- LNDMRK 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- RDOSTA 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/US4MI1FG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MI1FG/1.0/US4MI1FG.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI1FG/1.0/US4MI1FG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI1FG/1.0/US4MI1FG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI1FG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Oct 19, 2023 | metadata.json |