NOAA S-57 chart cell

North Atlantic Ocean - Onslow Bay

US4NC1CF

Usage band
Approach · code 4
Current edition
1.0
Features
79
S-57 layers
21
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
77.40000° W
East
77.10000° W
Center
34.35000° N, 77.25000° W
Bounds area
268 sq nm
Feature density
0.2949 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
3.8
Smallest layer
1
Largest layer
15
Area sq km
919
Features per sq km
0.08599
  1. SBDARE Seabed area 15
  2. DEPARE Depth area 14
  3. DEPCNT Depth contour 13
  4. SOUNDG Sounding 7
  5. BOYSPP Special purpose buoy 4
  6. LIGHTS Light 4
  7. M_QUAL Data quality 3
  8. MAGVAR Magnetic variation 3
  9. OBSTRN Obstruction 3
  10. SEAARE Sea area 2
  11. ADMARE 1
  12. CONZNE 1
  13. COSARE 1
  14. DMPGRD 1
  15. EXEZNE 1
  16. M_COVR Coverage 1
  17. M_NPUB 1
  18. M_NSYS 1
  19. MIPARE 1
  20. RESARE 1

Nearby Chart Cells

Approach usage band

  1. North Atlantic Ocean - Onslow Bay US4NC1CG - about 15 nm away
  2. North Atlantic Ocean - Onslow Bay and Approaches to New Topsail Inlet US4NC1CE - about 15 nm away
  3. North Atlantic Ocean - Onslow Bay and Approaches to Bogue, Bear, Browns and New River Inlets US4NC1DF - about 18 nm away
  4. North Atlantic Ocean US4NC1BF - about 18 nm away
  5. New River Inlet to Cape Fear US4NC13M - about 22 nm away
  6. Cape Lookout to New River US4NC15M - 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
1.0 Mar 11, 2026 metadata.json