NOAA S-57 chart cell

Approaches to Brunswick River

US4GA1AF

Usage band
Approach · code 4
Current edition
1.1
Features
2,031
S-57 layers
51
Published
Feb 17, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
31.20000° N
South
30.90000° N
West
81.60000° W
East
81.30000° W
Center
31.05000° N, 81.45000° W
Bounds area
278 sq nm
Feature density
7.307 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
39.8
Smallest layer
1
Largest layer
408
Area sq km
953
Features per sq km
2.13039
  1. DEPCNT Depth contour 408
  2. COALNE Coastline 398
  3. DEPARE Depth area 300
  4. LNDRGN Land region 158
  5. LNDARE Land area 89
  6. SEAARE Sea area 67
  7. LIGHTS Light 57
  8. SLCONS Shoreline construction 55
  9. SBDARE Seabed area 54
  10. M_QUAL Data quality 53
  11. DAYMAR 46
  12. BCNLAT Lateral beacon 36
  13. RETRFL 29
  14. RIVERS River 26
  15. SOUNDG Sounding 24
  16. BOYLAT Lateral buoy 23
  17. LNDMRK 20
  18. BRIDGE 19
  19. WRECKS Wreck 17
  20. BCNSPP Special purpose beacon 16

Nearby Chart Cells

Approach usage band

  1. Approaches to Brunswick River US4GA1AG - about 15 nm away
  2. Satilla River US4GA1AE - about 15 nm away
  3. Approaches to Saint Marys River US4FL2RE - about 18 nm away
  4. Altamaha River US4GA1BF - about 18 nm away
  5. Approaches to Doboy Sound and Altamaha Sound - North Atlantic Ocean US4GA1BG - about 24 nm away
  6. Approaches to Saint Marys River US4FL2RF - about 24 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
1.1 Feb 17, 2026 metadata.json