NOAA S-57 chart cell
North Atlantic Ocean
US4SC1DQ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,213
- S-57 layers
- 39
- Published
- Sep 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 33.30000° N
- South
- 33.00000° N
- West
- 79.50000° W
- East
- 79.20000° W
- Center
- 33.15000° N, 79.35000° W
- Bounds area
- 272 sq nm
- Feature density
- 4.4656 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.1
- Smallest layer
- 1
- Largest layer
- 211
- Area sq km
- 932
- Features per sq km
- 1.30196
- RIVERS River 211
- COALNE Coastline 200
- DEPCNT Depth contour 193
- DEPARE Depth area 190
- LNDRGN Land region 128
- LNDARE Land area 92
- SEAARE Sea area 43
- LAKARE 27
- M_QUAL Data quality 18
- SBDARE Seabed area 18
- CTNARE Caution area 12
- DYKCON 8
- PILPNT 7
- SLCONS Shoreline construction 6
- BRIDGE 5
- LNDMRK 5
- OBSTRN Obstruction 5
- MARCUL 4
- SOUNDG Sounding 4
- BCNLAT Lateral beacon 3
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/US4SC1DQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4SC1DQ/1.0/US4SC1DQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4SC1DQ/1.0/US4SC1DQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4SC1DQ/1.0/US4SC1DQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4SC1DQ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Sep 29, 2025 | metadata.json |