NOAA S-57 chart cell

North Atlantic Ocean and Block Island Sound from East Point Fishers Island to Watch Hill Point, RI

US5CT1EY

Usage band
Harbor · code 5
Current edition
4.1
Features
724
S-57 layers
39
Published
Dec 18, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
41.32500° N
South
41.25000° N
West
71.92500° W
East
71.85000° W
Center
41.28750° N, 71.88750° W
Bounds area
15 sq nm
Feature density
47.5172 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
18.6
Smallest layer
1
Largest layer
137
Area sq km
52
Features per sq km
13.8538
  1. UWTROC Underwater rock 137
  2. DEPARE Depth area 110
  3. DEPCNT Depth contour 110
  4. SLCONS Shoreline construction 70
  5. COALNE Coastline 38
  6. SBDARE Seabed area 36
  7. BOYLAT Lateral buoy 31
  8. LNDARE Land area 27
  9. OBSTRN Obstruction 20
  10. SEAARE Sea area 20
  11. SOUNDG Sounding 20
  12. M_QUAL Data quality 14
  13. DRGARE 12
  14. LNDRGN Land region 12
  15. LIGHTS Light 9
  16. FOGSIG 8
  17. BUISGL 5
  18. CTNARE Caution area 5
  19. WRECKS Wreck 5
  20. FAIRWY Fairway 4

Nearby Chart Cells

Harbor usage band

  1. Block Island Sound - Stonington Harbor to Wequetequock Cove US5CT1FY - about 5 nm away
  2. Block Island Sound and Mystic River US5CT1FX - about 6 nm away
  3. Baker Cover to Palmer Cove US5CT1FW - about 8 nm away
  4. Long Island Sound - Jordan Cove to New London Harbor and Thames River US5CT1EV - about 10 nm away
  5. Thames River - Greens Harbor to Smith Cove US5CT1FV - about 11 nm away
  6. Thames River annd Poquetanuck Cove US5CT1GW - about 11 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
4.1 Dec 18, 2025 metadata.json