NOAA S-57 chart cell
Atchafalaya River
US4LA1JG
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 48
- S-57 layers
- 14
- Published
- Jun 12, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.90000° N
- South
- 30.60000° N
- West
- 92.10000° W
- East
- 91.80000° W
- Center
- 30.75000° N, 91.95000° W
- Bounds area
- 279 sq nm
- Feature density
- 0.1722 / sq nm
Chart Statistics
14 largest layers shown
- Average features per layer
- 3.4
- Smallest layer
- 1
- Largest layer
- 9
- Area sq km
- 956
- Features per sq km
- 0.05019
- DEPARE Depth area 9
- DEPCNT Depth contour 7
- BUAARE 5
- COALNE Coastline 5
- LNDARE Land area 4
- SEAARE Sea area 4
- DYKCON 3
- LNDRGN Land region 3
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- DISMAR 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
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/US4LA1JG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4LA1JG/1.0/US4LA1JG.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1JG/1.0/US4LA1JG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1JG/1.0/US4LA1JG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1JG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 12, 2024 | metadata.json |