NOAA S-57 chart cell

Southern Massachusetts

US4MA1EE

Usage band
Approach · code 4
Current edition
1.6
Features
1,354
S-57 layers
48
Published
Mar 26, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

Loading map
North
41.70000° N
South
41.40000° N
West
70.50000° W
East
70.20000° W
Center
41.55000° N, 70.35000° W
Bounds area
243 sq nm
Feature density
5.5766 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
28.2
Smallest layer
1
Largest layer
321
Area sq km
833
Features per sq km
1.62587
  1. DEPCNT Depth contour 321
  2. DEPARE Depth area 309
  3. UWTROC Underwater rock 148
  4. COALNE Coastline 89
  5. SBDARE Seabed area 83
  6. SEAARE Sea area 55
  7. LNDRGN Land region 49
  8. BOYLAT Lateral buoy 43
  9. SLCONS Shoreline construction 28
  10. LIGHTS Light 27
  11. LNDARE Land area 24
  12. M_QUAL Data quality 22
  13. SOUNDG Sounding 21
  14. CTNARE Caution area 17
  15. WRECKS Wreck 17
  16. FOGSIG 10
  17. RIVERS River 9
  18. LNDMRK 8
  19. BUAARE 7
  20. ACHARE Anchorage area 6

Nearby Chart Cells

Approach usage band

  1. Southern Massachusetts US4MA1EF - about 13 nm away
  2. Southern Massachusetts US4MA1ED - about 13 nm away
  3. Southern Massachusetts US4MA1DE - about 18 nm away
  4. Cape Cod Bay to Cape Cod Canal US4MA1FE - about 18 nm away
  5. Southern Massachusetts US4MA1FF - about 22 nm away
  6. Cape Cod Canal and Bay US4MA1FD - about 22 nm away

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
1.6 Mar 26, 2026 metadata.json