NOAA S-57 chart cell

Mississippi Canyon and Gulf of America

US3LA1BC

Usage band
Coastal · code 3
Current edition
1.5
Features
1,782
S-57 layers
28
Published
Feb 5, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
28.80000° N
South
27.60000° N
West
91.20000° W
East
90.00000° W
Center
28.20000° N, 90.60000° W
Bounds area
4,575 sq nm
Feature density
0.3895 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
63.6
Smallest layer
1
Largest layer
1,279
Area sq km
15,691
Features per sq km
0.11357
  1. PIPSOL 1,279
  2. OFSPLF 152
  3. OBSTRN Obstruction 116
  4. SBDARE Seabed area 62
  5. DEPARE Depth area 36
  6. DEPCNT Depth contour 36
  7. WRECKS Wreck 31
  8. BOYSPP Special purpose buoy 16
  9. LIGHTS Light 14
  10. M_QUAL Data quality 7
  11. RESARE 6
  12. SOUNDG Sounding 6
  13. MORFAC 3
  14. MAGVAR Magnetic variation 2
  15. PILPNT 2
  16. SEAARE Sea area 2
  17. BOYISD 1
  18. CONZNE 1
  19. COSARE 1
  20. CTSARE 1

Nearby Chart Cells

Coastal usage band

  1. Mississippi Canyon and Gulf of America US3LA1BD - about 63 nm away
  2. Gulf of America US3LA1BB - about 63 nm away
  3. Gulf Intracoastal Waterway - New Orleans to Morgan Ciy and Gulf of America US3LA1CC - about 72 nm away
  4. Gulf of America US3LA1AC - about 72 nm away
  5. Approaches to Mississippi River US3GC04M - about 89 nm away
  6. Approaches to Mississippi River and Gulf of America US3LA1CD - about 96 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
1.5 Feb 5, 2026 metadata.json