NOAA S-57 chart cell
Cape Cod Bay and North Atlantic Ocean
US4MA1GE
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 173
- S-57 layers
- 33
- Published
- Nov 12, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 42.30000° N
- South
- 42.00000° N
- West
- 70.50000° W
- East
- 70.20000° W
- Center
- 42.15000° N, 70.35000° W
- Bounds area
- 241 sq nm
- Feature density
- 0.7192 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.2
- Smallest layer
- 1
- Largest layer
- 40
- Area sq km
- 825
- Features per sq km
- 0.20969
- SBDARE Seabed area 40
- DEPARE Depth area 25
- DEPCNT Depth contour 23
- M_QUAL Data quality 12
- WRECKS Wreck 9
- LNDRGN Land region 7
- COALNE Coastline 6
- RESARE 6
- LNDMRK 4
- SEAARE Sea area 4
- SOUNDG Sounding 4
- DMPGRD 3
- LAKARE 3
- LNDARE Land area 3
- CTNARE Caution area 2
- LIGHTS Light 2
- MAGVAR Magnetic variation 2
- TESARE 2
- TWRTPT 2
- ADMARE 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/US4MA1GE.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MA1GE/1.1/US4MA1GE.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MA1GE/1.1/US4MA1GE.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MA1GE/1.1/US4MA1GE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MA1GE/1.1/US4MA1GE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MA1GE/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Nov 12, 2025 | metadata.json |