NOAA S-57 chart cell

Sachem Head

US5CT1DN

Usage band
Harbor · code 5
Current edition
5.0
Features
572
S-57 layers
29
Published
Jan 14, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
41.25000° N
South
41.17500° N
West
72.75000° W
East
72.67500° W
Center
41.21250° N, 72.71250° W
Bounds area
15 sq nm
Feature density
37.4982 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
19.7
Smallest layer
1
Largest layer
120
Area sq km
52
Features per sq km
10.93271
  1. DEPCNT Depth contour 120
  2. DEPARE Depth area 113
  3. UWTROC Underwater rock 110
  4. SBDARE Seabed area 68
  5. LNDARE Land area 37
  6. COALNE Coastline 26
  7. OBSTRN Obstruction 18
  8. SLCONS Shoreline construction 17
  9. M_QUAL Data quality 8
  10. PONTON 8
  11. SOUNDG Sounding 8
  12. SEAARE Sea area 7
  13. LNDRGN Land region 6
  14. BOYLAT Lateral buoy 5
  15. BRIDGE 2
  16. LIGHTS Light 2
  17. LNDELV 2
  18. MAGVAR Magnetic variation 2
  19. RESARE 2
  20. RIVERS River 2

Nearby Chart Cells

Harbor 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
5.0 Jan 14, 2026 metadata.json