NOAA S-57 chart cell
Cape Cod Canal and Bay
US4MA1FD
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 932
- S-57 layers
- 49
- Published
- Aug 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 42.00000° N
- South
- 41.70000° N
- West
- 70.80000° W
- East
- 70.50000° W
- Center
- 41.85000° N, 70.65000° W
- Bounds area
- 242 sq nm
- Feature density
- 3.8565 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19
- Smallest layer
- 1
- Largest layer
- 205
- Area sq km
- 829
- Features per sq km
- 1.12437
- COALNE Coastline 205
- LNDRGN Land region 108
- UWTROC Underwater rock 84
- SLCONS Shoreline construction 82
- DEPCNT Depth contour 66
- DEPARE Depth area 59
- RIVERS River 53
- SBDARE Seabed area 33
- LNDARE Land area 25
- BUISGL 19
- SEAARE Sea area 19
- LNDMRK 17
- BRIDGE 16
- M_QUAL Data quality 14
- SILTNK 14
- OBSTRN Obstruction 13
- BUAARE 12
- LIGHTS Light 12
- BOYLAT Lateral buoy 8
- RESARE 7
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/US4MA1FD.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/US4MA1FD.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/US4MA1FD.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/US4MA1FD.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/US4MA1FD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/US4MA1FD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MA1FD/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Aug 29, 2025 | metadata.json |