NOAA S-57 chart cell
North Atlantic Ocean - Onslow Bay and Approaches to Bogue Inlet
US4NC1DG
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 685
- S-57 layers
- 35
- Published
- Mar 11, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 34.80000° N
- South
- 34.50000° N
- West
- 77.10000° W
- East
- 76.80000° W
- Center
- 34.65000° N, 76.95000° W
- Bounds area
- 267 sq nm
- Feature density
- 2.5665 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19.6
- Smallest layer
- 1
- Largest layer
- 235
- Area sq km
- 915
- Features per sq km
- 0.74829
- LNDARE Land area 235
- COALNE Coastline 143
- SLCONS Shoreline construction 87
- LNDRGN Land region 60
- SBDARE Seabed area 30
- RIVERS River 28
- SEAARE Sea area 16
- DEPARE Depth area 12
- OBSTRN Obstruction 9
- BRIDGE 8
- M_QUAL Data quality 8
- DEPCNT Depth contour 7
- CTNARE Caution area 5
- SILTNK 5
- LIGHTS Light 4
- BOYSPP Special purpose buoy 3
- CBLOHD 3
- BUAARE 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 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/US4NC1DG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NC1DG/1.0/US4NC1DG.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NC1DG/1.0/US4NC1DG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NC1DG/1.0/US4NC1DG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NC1DG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 11, 2026 | metadata.json |