NOAA S-57 chart cell
Gulf Intracoastal Waterway - Vermilion River to Vermilion Bay
US4LA1GF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,251
- S-57 layers
- 48
- Published
- Apr 23, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.00000° N
- South
- 29.70000° N
- West
- 92.40000° W
- East
- 92.10000° W
- Center
- 29.85000° N, 92.25000° W
- Bounds area
- 281 sq nm
- Feature density
- 4.4457 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 26.1
- Smallest layer
- 1
- Largest layer
- 260
- Area sq km
- 965
- Features per sq km
- 1.29616
- COALNE Coastline 260
- LNDRGN Land region 130
- SLCONS Shoreline construction 118
- LNDARE Land area 114
- DEPARE Depth area 70
- DEPCNT Depth contour 52
- CANALS 49
- RIVERS River 48
- VEGATN 46
- BUISGL 30
- SEAARE Sea area 27
- DAYMAR 26
- LIGHTS Light 26
- DYKCON 24
- PILPNT 21
- BCNLAT Lateral beacon 20
- BCNSPP Special purpose beacon 19
- M_QUAL Data quality 16
- CTNARE Caution area 15
- LAKARE 14
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/US4LA1GF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4LA1GF/1.0/US4LA1GF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1GF/1.0/US4LA1GF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1GF/1.0/US4LA1GF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1GF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 23, 2025 | metadata.json |