NOAA S-57 chart cell
North Atlantic Ocean
US4NC1GM
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 41
- S-57 layers
- 16
- Published
- Apr 29, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 35.70000° N
- South
- 35.40000° N
- West
- 75.30000° W
- East
- 75.00000° W
- Center
- 35.55000° N, 75.15000° W
- Bounds area
- 264 sq nm
- Feature density
- 0.1553 / sq nm
Chart Statistics
16 largest layers shown
- Average features per layer
- 2.6
- Smallest layer
- 1
- Largest layer
- 9
- Area sq km
- 905
- Features per sq km
- 0.04529
- SBDARE Seabed area 9
- M_QUAL Data quality 6
- SOUNDG Sounding 5
- WRECKS Wreck 5
- DEPARE Depth area 3
- DEPCNT Depth contour 2
- MAGVAR Magnetic variation 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- LOCMAG 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- SEAARE Sea area 1
- TESARE 1
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/US4NC1GM.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NC1GM/1.0/US4NC1GM.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NC1GM/1.0/US4NC1GM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NC1GM/1.0/US4NC1GM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NC1GM/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 29, 2026 | metadata.json |