NOAA S-57 chart cell

Massachusetts

US3MA1BD

Usage band
Coastal · code 3
Current edition
1.0
Features
396
S-57 layers
25
Published
Apr 17, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
42.00000° N
South
40.80000° N
West
69.60000° W
East
68.40000° W
Center
41.40000° N, 69.00000° W
Bounds area
3,894 sq nm
Feature density
0.1017 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
15.8
Smallest layer
1
Largest layer
112
Area sq km
13,355
Features per sq km
0.02965
  1. DEPARE Depth area 112
  2. DEPCNT Depth contour 111
  3. SBDARE Seabed area 74
  4. WRECKS Wreck 42
  5. M_QUAL Data quality 12
  6. SEAARE Sea area 10
  7. MAGVAR Magnetic variation 6
  8. RESARE 5
  9. OBSTRN Obstruction 3
  10. CBLSUB 2
  11. SOUNDG Sounding 2
  12. TSSBND 2
  13. TSSLPT 2
  14. WEDKLP 2
  15. C_AGGR 1
  16. CONZNE 1
  17. COSARE 1
  18. CTNARE Caution area 1
  19. EXEZNE 1
  20. M_COVR Coverage 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.

Editions

Edition Published Metadata
1.0 Apr 17, 2026 metadata.json