NOAA S-57 chart cell
Atchafalaya River
US4LA1JH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 77
- S-57 layers
- 19
- Published
- Jun 12, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.90000° N
- South
- 30.60000° N
- West
- 91.80000° W
- East
- 91.50000° W
- Center
- 30.75000° N, 91.65000° W
- Bounds area
- 279 sq nm
- Feature density
- 0.2762 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 4.1
- Smallest layer
- 1
- Largest layer
- 12
- Area sq km
- 956
- Features per sq km
- 0.08052
- DEPARE Depth area 12
- BUAARE 10
- DEPCNT Depth contour 8
- SEAARE Sea area 8
- COALNE Coastline 6
- DYKCON 5
- DISMAR 4
- LNDRGN Land region 4
- M_QUAL Data quality 4
- BRIDGE 3
- LNDARE Land area 3
- MAGVAR Magnetic variation 2
- PIPARE 2
- CBLARE 1
- FERYRT 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- PIPOHD 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/US4LA1JH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4LA1JH/1.0/US4LA1JH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1JH/1.0/US4LA1JH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1JH/1.0/US4LA1JH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1JH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 12, 2024 | metadata.json |