NOAA S-57 chart cell

Chandeleur Sound and Eloi Bay

US4LA1GP

Usage band
Approach · code 4
Current edition
1.1
Features
786
S-57 layers
28
Published
Jul 16, 2024
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
30.00000° N
South
29.70000° N
West
89.40000° W
East
89.10000° W
Center
29.85000° N, 89.25000° W
Bounds area
281 sq nm
Feature density
2.7932 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
28.1
Smallest layer
1
Largest layer
198
Area sq km
965
Features per sq km
0.81437
  1. COALNE Coastline 198
  2. LNDRGN Land region 178
  3. LNDARE Land area 171
  4. SEAARE Sea area 42
  5. DEPARE Depth area 34
  6. SBDARE Seabed area 33
  7. DEPCNT Depth contour 26
  8. RIVERS River 18
  9. M_QUAL Data quality 12
  10. OFSPLF 12
  11. BCNSPP Special purpose beacon 10
  12. LIGHTS Light 10
  13. WRECKS Wreck 6
  14. LAKARE 5
  15. PIPSOL 5
  16. OBSTRN Obstruction 4
  17. SOUNDG Sounding 4
  18. UWTROC Underwater rock 4
  19. PILPNT 3
  20. ADMARE 2

Nearby Chart Cells

Approach usage band

  1. Chandeleur Sound US4LA1GQ - about 16 nm away
  2. Mississippi River - Gulf Outlet and Lake Borgne US4LA1GO - about 16 nm away
  3. Gulf Intracoastal Waterway - Mississippi Sound to Chandeleur Sound US4LA1HQ - about 18 nm away
  4. Gulf of America to Breton Sound and Chandeleur Sound US4LA1FP - about 18 nm away
  5. Chandeleur Sound to Mississippi Sound and Gulf of America US4MS1BE - about 24 nm away
  6. Gulf Intracoastal Waterway - Pearl River to Lake Borgne US4LA1HP - 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
1.1 Jul 16, 2024 metadata.json