NOAA S-57 chart cell

Gulf of America

US4LA1EA

Usage band
Approach · code 4
Current edition
1.2
Features
255
S-57 layers
22
Published
Jun 18, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
29.40000° N
South
29.10000° N
West
93.90000° W
East
93.60000° W
Center
29.25000° N, 93.75000° W
Bounds area
283 sq nm
Feature density
0.9008 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
11.6
Smallest layer
1
Largest layer
107
Area sq km
971
Features per sq km
0.26264
  1. PIPSOL 107
  2. SBDARE Seabed area 41
  3. OFSPLF 29
  4. SOUNDG Sounding 16
  5. OBSTRN Obstruction 12
  6. M_QUAL Data quality 11
  7. DEPARE Depth area 8
  8. DEPCNT Depth contour 7
  9. DMPGRD 5
  10. WRECKS Wreck 4
  11. SEAARE Sea area 3
  12. MAGVAR Magnetic variation 2
  13. ACHARE Anchorage area 1
  14. CONZNE 1
  15. COSARE 1
  16. CTNARE Caution area 1
  17. EXEZNE 1
  18. FAIRWY Fairway 1
  19. M_COVR Coverage 1
  20. M_NPUB 1

Nearby Chart Cells

Approach usage band

  1. Gulf of America US4LA1EB - about 16 nm away
  2. Gulf of America - Sabine Bank to Heald Bank US4TX1MM - about 16 nm away
  3. Approaches to Sabine Pass - Sabine Bank US4LA1FA - about 18 nm away
  4. Approaches to Calcasieu Pass - Sabine Bank US4LA1FB - about 24 nm away
  5. Gulf Intracoastal Waterway - Sabine Bank - Gulf of America US4TX1NM - about 24 nm away
  6. Gulf of America US4TX1LM - 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
1.2 Jun 18, 2026 metadata.json