NOAA S-57 chart cell

Gulf of America

US4LA1ED

Usage band
Approach · code 4
Current edition
1.3
Features
179
S-57 layers
20
Published
Mar 26, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
29.40000° N
South
29.10000° N
West
93.00000° W
East
92.70000° W
Center
29.25000° N, 92.85000° W
Bounds area
283 sq nm
Feature density
0.6324 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
9
Smallest layer
1
Largest layer
95
Area sq km
971
Features per sq km
0.18436
  1. PIPSOL 95
  2. OFSPLF 20
  3. SBDARE Seabed area 17
  4. OBSTRN Obstruction 11
  5. SOUNDG Sounding 6
  6. WRECKS Wreck 5
  7. CBLSUB 4
  8. DEPARE Depth area 4
  9. DEPCNT Depth contour 3
  10. M_QUAL Data quality 3
  11. M_NPUB 2
  12. BOYSPP Special purpose buoy 1
  13. CONZNE 1
  14. EXEZNE 1
  15. LIGHTS Light 1
  16. M_COVR Coverage 1
  17. M_NSYS 1
  18. MAGVAR Magnetic variation 1
  19. SEAARE Sea area 1
  20. TESARE 1

Nearby Chart Cells

Approach usage band

  1. Gulf of America US4LA1EE - about 16 nm away
  2. Approaches to Calcasieu Pass - Gulf of America US4LA1EC - about 16 nm away
  3. Gulf of America US4LA1FD - about 18 nm away
  4. Gulf of America to White Lake US4LA1FE - about 24 nm away
  5. Approaches to Calcasieu Pass - Mermentau River Channel US4LA1FC - about 24 nm away
  6. Gulf of America US4LA1EB - about 31 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
1.3 Mar 26, 2025 metadata.json