NOAA S-57 chart cell
Massachusetts
US3MA1BC
- Usage band
- Coastal · code 3
- Current edition
- 1.0
- Features
- 819
- S-57 layers
- 54
- Published
- Apr 17, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 42.00000° N
- South
- 40.80000° N
- West
- 70.80000° W
- East
- 69.60000° W
- Center
- 41.40000° N, 70.20000° W
- Bounds area
- 3,894 sq nm
- Feature density
- 0.2103 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.2
- Smallest layer
- 1
- Largest layer
- 151
- Area sq km
- 13,355
- Features per sq km
- 0.06132
- DEPCNT Depth contour 151
- DEPARE Depth area 131
- SBDARE Seabed area 74
- LNDARE Land area 62
- COALNE Coastline 61
- RIVERS River 55
- WRECKS Wreck 37
- SEAARE Sea area 28
- LIGHTS Light 25
- SOUNDG Sounding 20
- BUAARE 17
- LNDMRK 16
- LAKARE 10
- LNDRGN Land region 10
- SLCONS Shoreline construction 10
- RESARE 9
- BOYSPP Special purpose buoy 8
- OBSTRN Obstruction 8
- FOGSIG 7
- M_QUAL Data quality 7
Nearby Chart Cells
Coastal 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/US3MA1BC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3MA1BC/1.0/US3MA1BC.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3MA1BC/1.0/US3MA1BC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3MA1BC/1.0/US3MA1BC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3MA1BC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 17, 2026 | metadata.json |