NOAA S-57 chart cell

Gulf of America

US4LA1CK

Usage band
Approach · code 4
Current edition
2.1
Features
289
S-57 layers
18
Published
Dec 9, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
28.80000° N
South
28.50000° N
West
90.90000° W
East
90.60000° W
Center
28.65000° N, 90.75000° W
Bounds area
285 sq nm
Feature density
1.015 / sq nm

Chart Statistics

18 largest layers shown

Average features per layer
16.1
Smallest layer
1
Largest layer
176
Area sq km
977
Features per sq km
0.29594
  1. PIPSOL 176
  2. OFSPLF 35
  3. SBDARE Seabed area 24
  4. OBSTRN Obstruction 10
  5. DEPARE Depth area 9
  6. DEPCNT Depth contour 8
  7. SOUNDG Sounding 8
  8. M_QUAL Data quality 7
  9. M_NPUB 2
  10. WRECKS Wreck 2
  11. CBLSUB 1
  12. CONZNE 1
  13. COSARE 1
  14. EXEZNE 1
  15. M_COVR Coverage 1
  16. M_NSYS 1
  17. MAGVAR Magnetic variation 1
  18. SEAARE Sea area 1

Nearby Chart Cells

Approach usage band

  1. Gulf of America US4LA1CJ - about 16 nm away
  2. Gulf of America US4LA1CL - about 16 nm away
  3. Gulf of America to Caillou Bay, Lake Pelto, and Pelican Lake US4LA1DK - about 18 nm away
  4. Gulf of America to Caillou Bay US4LA1DJ - about 24 nm away
  5. Terrebonne Bay and Timbalier Bay - Gulf of America US4LA1DL - about 24 nm away
  6. Gulf of America US4LA1CI - about 32 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
2.1 Dec 9, 2025 metadata.json