NOAA S-57 chart cell
Long Island Sound – South of Black Rock Harbor
US5CT1BG
- Usage band
- Harbor · code 5
- Current edition
- 3.0
- Features
- 74
- S-57 layers
- 15
- Published
- Aug 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.10000° N
- South
- 41.02500° N
- West
- 73.27500° W
- East
- 73.20000° W
- Center
- 41.06250° N, 73.23750° W
- Bounds area
- 15 sq nm
- Feature density
- 4.8401 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 4.9
- Smallest layer
- 1
- Largest layer
- 39
- Area sq km
- 52
- Features per sq km
- 1.41114
- SBDARE Seabed area 39
- DEPARE Depth area 7
- DEPCNT Depth contour 6
- SOUNDG Sounding 6
- OBSTRN Obstruction 3
- MAGVAR Magnetic variation 2
- RESARE 2
- SEAARE Sea area 2
- ACHARE Anchorage area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- PIPSOL 1
- WRECKS Wreck 1
Nearby Chart Cells
Harbor 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/US5CT1BG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5CT1BG/3.0/US5CT1BG.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1BG/3.0/US5CT1BG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1BG/3.0/US5CT1BG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1BG/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Aug 1, 2025 | metadata.json |