NOAA S-57 chart cell
Massachusetts Bay - Cohasset Harbor
US5BOSBG
- Usage band
- Harbor · code 5
- Current edition
- 3.1
- Features
- 1,831
- S-57 layers
- 41
- Published
- Apr 17, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 42.30000° N
- South
- 42.22500° N
- West
- 70.80000° W
- East
- 70.72500° W
- Center
- 42.26250° N, 70.76250° W
- Bounds area
- 15 sq nm
- Feature density
- 122.0121 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 44.7
- Smallest layer
- 1
- Largest layer
- 389
- Area sq km
- 51
- Features per sq km
- 35.57305
- DEPCNT Depth contour 389
- DEPARE Depth area 373
- UWTROC Underwater rock 258
- SBDARE Seabed area 180
- COALNE Coastline 120
- LNDARE Land area 108
- PONTON 62
- LNDRGN Land region 56
- SLCONS Shoreline construction 44
- SEAARE Sea area 33
- OBSTRN Obstruction 31
- BUISGL 24
- M_QUAL Data quality 21
- RIVERS River 21
- BOYLAT Lateral buoy 16
- LNDELV 15
- SOUNDG Sounding 12
- LIGHTS Light 7
- DRGARE 6
- LAKARE 6
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/US5BOSBG.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/harbor/US5BOSBG/3.1/US5BOSBG.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/harbor/US5BOSBG/3.1/US5BOSBG.001
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5BOSBG/3.1/US5BOSBG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5BOSBG/3.1/US5BOSBG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5BOSBG/3.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.1 | Apr 17, 2025 | metadata.json |