NOAA S-57 chart cell

Gulf of America

US4LA1EB

Usage band
Approach · code 4
Current edition
1.1
Features
205
S-57 layers
18
Published
Mar 26, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

Loading map
North
29.40000° N
South
29.10000° N
West
93.60000° W
East
93.30000° W
Center
29.25000° N, 93.45000° W
Bounds area
283 sq nm
Feature density
0.7242 / sq nm

Chart Statistics

18 largest layers shown

Average features per layer
11.4
Smallest layer
1
Largest layer
91
Area sq km
971
Features per sq km
0.21114
  1. PIPSOL 91
  2. SBDARE Seabed area 31
  3. OFSPLF 30
  4. M_QUAL Data quality 12
  5. SOUNDG Sounding 10
  6. OBSTRN Obstruction 6
  7. DEPARE Depth area 5
  8. DEPCNT Depth contour 4
  9. WRECKS Wreck 4
  10. MAGVAR Magnetic variation 3
  11. M_NPUB 2
  12. CONZNE 1
  13. EXEZNE 1
  14. LNDARE Land area 1
  15. LNDMRK 1
  16. M_COVR Coverage 1
  17. M_NSYS 1
  18. SEAARE Sea area 1

Nearby Chart Cells

Approach usage band

  1. Approaches to Calcasieu Pass - Gulf of America US4LA1EC - about 16 nm away
  2. Gulf of America US4LA1EA - about 16 nm away
  3. Approaches to Calcasieu Pass - Sabine Bank US4LA1FB - about 18 nm away
  4. Approaches to Calcasieu Pass - Mermentau River Channel US4LA1FC - about 24 nm away
  5. Approaches to Sabine Pass - Sabine Bank US4LA1FA - about 24 nm away
  6. Gulf of America US4LA1ED - 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
1.1 Mar 26, 2025 metadata.json