NOAA S-57 chart cell
Gulf of America to Fourleague Bay, Caillou Bay, Caillou Lake, and Lake Merchant
US4LA1EJ
- Usage band
- Approach · code 4
- Current edition
- 2.1
- Features
- 1,065
- S-57 layers
- 33
- Published
- Sep 22, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 29.40000° N
- South
- 29.10000° N
- West
- 91.20000° W
- East
- 90.90000° W
- Center
- 29.25000° N, 91.05000° W
- Bounds area
- 283 sq nm
- Feature density
- 3.7623 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.3
- Smallest layer
- 1
- Largest layer
- 134
- Area sq km
- 971
- Features per sq km
- 1.09692
- COALNE Coastline 134
- PIPSOL 126
- DEPARE Depth area 117
- DEPCNT Depth contour 117
- SEAARE Sea area 85
- LNDARE Land area 77
- SBDARE Seabed area 70
- RIVERS River 59
- LNDRGN Land region 58
- OBSTRN Obstruction 33
- WRECKS Wreck 32
- OFSPLF 25
- M_QUAL Data quality 23
- LIGHTS Light 19
- BCNSPP Special purpose beacon 16
- PILPNT 13
- CTNARE Caution area 11
- LAKARE 8
- FNCLNE 7
- SLCONS Shoreline construction 7
Nearby Chart Cells
Approach usage band
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.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4LA1EJ.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4LA1EJ/2.1/US4LA1EJ.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4LA1EJ/2.1/US4LA1EJ.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1EJ/2.1/US4LA1EJ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1EJ/2.1/US4LA1EJ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1EJ/2.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.1 | Sep 22, 2025 | metadata.json |