NOAA S-57 chart cell

Pamlico Sound Western Part

US4NC20M

Usage band
Approach · code 4
Current edition
20.8
Features
4,282
S-57 layers
47
Published
Apr 9, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
35.71215° N
South
34.90195° N
West
76.84848° W
East
75.85442° W
Center
35.30705° N, 76.35145° W
Bounds area
2,369 sq nm
Feature density
1.8073 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
91.1
Smallest layer
1
Largest layer
1,060
Area sq km
8,126
Features per sq km
0.52693
  1. COALNE Coastline 1,060
  2. RIVERS River 602
  3. LNDRGN Land region 571
  4. DAYMAR 231
  5. SBDARE Seabed area 196
  6. SLCONS Shoreline construction 194
  7. BCNLAT Lateral beacon 153
  8. DEPARE Depth area 127
  9. DEPCNT Depth contour 123
  10. SEAARE Sea area 121
  11. LNDARE Land area 116
  12. BUISGL 105
  13. LIGHTS Light 98
  14. BCNSPP Special purpose beacon 83
  15. PILPNT 71
  16. OBSTRN Obstruction 54
  17. BOYSPP Special purpose buoy 52
  18. WRECKS Wreck 51
  19. RETRFL 48
  20. M_QUAL Data quality 33

Nearby Chart Cells

Approach usage band

  1. Intracoastal Waterway Albermarle Sound to Neuse River;Alligator River and Second Creek Extensions US4NC55M - about 32 nm away
  2. Cape Hatteras-Wimble Shoals to Ocracoke Inlet US4NC30M - about 36 nm away
  3. Portsmouth Island to Beaufort, Including Cape Lookout Shoals US4NC16M - about 38 nm away
  4. Cape Henry to Pamlico Sound, Including Albemarle Sd.; Rudee Heights US4NC53M - about 45 nm away
  5. North Atlantic Ocean - Onslow Bay and Approaches to Bogue Inlet US4NC1DG - about 49 nm away
  6. Cape Lookout to New River US4NC15M - about 51 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
20.8 Apr 9, 2026 metadata.json