NOAA S-57 chart cell
North Atlantic Ocean - Approaches to Saint Helena Sound and North Edisto River
US4SC1BN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,085
- S-57 layers
- 42
- Published
- Aug 22, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 32.70000° N
- South
- 32.40000° N
- West
- 80.40000° W
- East
- 80.10000° W
- Center
- 32.55000° N, 80.25000° W
- Bounds area
- 273 sq nm
- Feature density
- 7.6241 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 49.6
- Smallest layer
- 1
- Largest layer
- 598
- Area sq km
- 938
- Features per sq km
- 2.22283
- COALNE Coastline 598
- LNDRGN Land region 401
- LNDARE Land area 230
- DEPARE Depth area 206
- DEPCNT Depth contour 201
- RIVERS River 83
- SBDARE Seabed area 74
- SLCONS Shoreline construction 55
- SEAARE Sea area 54
- M_QUAL Data quality 44
- CTNARE Caution area 18
- SOUNDG Sounding 12
- WATTUR 10
- BOYLAT Lateral buoy 9
- BRIDGE 9
- DAYMAR 8
- LAKARE 8
- BUAARE 7
- LIGHTS Light 7
- OBSTRN Obstruction 7
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/US4SC1BN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4SC1BN/1.0/US4SC1BN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4SC1BN/1.0/US4SC1BN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4SC1BN/1.0/US4SC1BN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4SC1BN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 22, 2025 | metadata.json |