NOAA S-57 chart cell

North Atlantic Ocean - Onslow Bay and Approaches to New Topsail Inlet

US4NC1CE

Usage band
Approach · code 4
Current edition
1.0
Features
862
S-57 layers
36
Published
Mar 11, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
34.50000° N
South
34.20000° N
West
77.70000° W
East
77.40000° W
Center
34.35000° N, 77.55000° W
Bounds area
268 sq nm
Feature density
3.2181 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
23.9
Smallest layer
1
Largest layer
237
Area sq km
919
Features per sq km
0.93826
  1. COALNE Coastline 237
  2. LNDARE Land area 210
  3. LNDRGN Land region 150
  4. RIVERS River 64
  5. LAKARE 35
  6. SBDARE Seabed area 28
  7. DEPCNT Depth contour 21
  8. SLCONS Shoreline construction 21
  9. DEPARE Depth area 19
  10. SEAARE Sea area 18
  11. M_QUAL Data quality 8
  12. BRIDGE 5
  13. BUAARE 5
  14. CTNARE Caution area 5
  15. OBSTRN Obstruction 5
  16. SILTNK 4
  17. LNDMRK 3
  18. SOUNDG Sounding 3
  19. CBLOHD 2
  20. FAIRWY Fairway 2

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.

Editions

Edition Published Metadata
1.0 Mar 11, 2026 metadata.json