NOAA S-57 chart cell
Approaches to Saint Marys River
US4FL2RE
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 1,489
- S-57 layers
- 47
- Published
- Apr 30, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.90000° N
- South
- 30.60000° N
- West
- 81.60000° W
- East
- 81.30000° W
- Center
- 30.75000° N, 81.45000° W
- Bounds area
- 279 sq nm
- Feature density
- 5.3403 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.7
- Smallest layer
- 1
- Largest layer
- 397
- Area sq km
- 956
- Features per sq km
- 1.55698
- COALNE Coastline 397
- LNDRGN Land region 249
- DEPCNT Depth contour 210
- LNDARE Land area 171
- DEPARE Depth area 158
- SLCONS Shoreline construction 39
- SEAARE Sea area 37
- SBDARE Seabed area 32
- LIGHTS Light 31
- M_QUAL Data quality 24
- BOYLAT Lateral buoy 19
- LNDMRK 11
- SOUNDG Sounding 10
- OBSTRN Obstruction 9
- RESARE 9
- RIVERS River 9
- BRIDGE 8
- BOYSPP Special purpose buoy 7
- PONTON 6
- BUAARE 5
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/US4FL2RE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL2RE/2.0/US4FL2RE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL2RE/2.0/US4FL2RE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL2RE/2.0/US4FL2RE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL2RE/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 30, 2025 | metadata.json |