NOAA S-57 chart cell
Saint Marys River
US4MI2QV
- Usage band
- Approach · code 4
- Current edition
- 2.2
- Features
- 273
- S-57 layers
- 33
- Published
- Aug 6, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.80000° N
- South
- 46.50000° N
- West
- 84.30000° W
- East
- 84.00000° W
- Center
- 46.65000° N, 84.15000° W
- Bounds area
- 223 sq nm
- Feature density
- 1.2258 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.3
- Smallest layer
- 1
- Largest layer
- 65
- Area sq km
- 764
- Features per sq km
- 0.35739
- DEPARE Depth area 65
- DEPCNT Depth contour 61
- COALNE Coastline 23
- CTRPNT 19
- LNDRGN Land region 16
- BOYLAT Lateral buoy 15
- RIVERS River 9
- OBSTRN Obstruction 7
- BUAARE 5
- LNDARE Land area 5
- PILPNT 5
- LAKARE 4
- SLCONS Shoreline construction 4
- LIGHTS Light 3
- LNDMRK 3
- SBDARE Seabed area 3
- SEAARE Sea area 3
- UWTROC Underwater rock 3
- WRECKS Wreck 3
- ADMARE 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/US4MI2QV.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/US4MI2QV.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/US4MI2QV.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/US4MI2QV.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/US4MI2QV.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/US4MI2QV.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MI2QV/2.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.2 | Aug 6, 2025 | metadata.json |