NOAA S-57 chart cell
Massachusetts
US3MA1AC
- Usage band
- Coastal · code 3
- Current edition
- 1.0
- Features
- 157
- S-57 layers
- 23
- Published
- Apr 17, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 40.80000° N
- South
- 39.60000° N
- West
- 70.80000° W
- East
- 69.60000° W
- Center
- 40.20000° N, 70.20000° W
- Bounds area
- 3,965 sq nm
- Feature density
- 0.0396 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.8
- Smallest layer
- 1
- Largest layer
- 32
- Area sq km
- 13,599
- Features per sq km
- 0.01155
- DEPCNT Depth contour 32
- SBDARE Seabed area 31
- DEPARE Depth area 30
- WRECKS Wreck 16
- CBLSUB 9
- SEAARE Sea area 6
- M_QUAL Data quality 5
- MAGVAR Magnetic variation 5
- TSSBND 3
- BOYSPP Special purpose buoy 2
- DMPGRD 2
- FAIRWY Fairway 2
- LIGHTS Light 2
- SOUNDG Sounding 2
- TSSLPT 2
- C_AGGR 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
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/US3MA1AC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3MA1AC/1.0/US3MA1AC.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3MA1AC/1.0/US3MA1AC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3MA1AC/1.0/US3MA1AC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3MA1AC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 17, 2026 | metadata.json |