NOAA S-57 chart cell

Gulf of America

US4LA1CL

Usage band
Approach · code 4
Current edition
1.1
Features
216
S-57 layers
19
Published
May 30, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
28.80000° N
South
28.50000° N
West
90.60000° W
East
90.30000° W
Center
28.65000° N, 90.45000° W
Bounds area
285 sq nm
Feature density
0.7587 / sq nm

Chart Statistics

19 largest layers shown

Average features per layer
11.4
Smallest layer
1
Largest layer
111
Area sq km
977
Features per sq km
0.22119
  1. PIPSOL 111
  2. OFSPLF 24
  3. SBDARE Seabed area 22
  4. DEPARE Depth area 11
  5. OBSTRN Obstruction 11
  6. DEPCNT Depth contour 10
  7. WRECKS Wreck 6
  8. M_QUAL Data quality 5
  9. SOUNDG Sounding 3
  10. M_NPUB 2
  11. MAGVAR Magnetic variation 2
  12. SEAARE Sea area 2
  13. BOYLAT Lateral buoy 1
  14. CBLSUB 1
  15. CONZNE 1
  16. EXEZNE 1
  17. LIGHTS Light 1
  18. M_COVR Coverage 1
  19. M_NSYS 1

Nearby Chart Cells

Approach usage band

  1. Gulf of America US4LA1CM - about 16 nm away
  2. Gulf of America US4LA1CK - about 16 nm away
  3. Terrebonne Bay and Timbalier Bay - Gulf of America US4LA1DL - about 18 nm away
  4. Timbalier Bay - Gulf of America US4LA1DM - about 24 nm away
  5. Gulf of America to Caillou Bay, Lake Pelto, and Pelican Lake US4LA1DK - about 24 nm away
  6. Gulf of America US4LA1CN - 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
1.1 May 30, 2025 metadata.json