NOAA S-57 chart cell
Gulf of America to Caillou Bay, Lake Pelto, and Pelican Lake
US4LA1DK
- Usage band
- Approach · code 4
- Current edition
- 2.1
- Features
- 1,286
- S-57 layers
- 33
- Published
- Nov 20, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 29.10000° N
- South
- 28.80000° N
- West
- 90.90000° W
- East
- 90.60000° W
- Center
- 28.95000° N, 90.75000° W
- Bounds area
- 284 sq nm
- Feature density
- 4.5298 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 39
- Smallest layer
- 1
- Largest layer
- 650
- Area sq km
- 974
- Features per sq km
- 1.32068
- PIPSOL 650
- OFSPLF 158
- SBDARE Seabed area 70
- DEPCNT Depth contour 67
- DEPARE Depth area 62
- COALNE Coastline 50
- LNDARE Land area 43
- LNDRGN Land region 36
- OBSTRN Obstruction 35
- SEAARE Sea area 18
- M_QUAL Data quality 16
- WRECKS Wreck 13
- SLCONS Shoreline construction 10
- MARCUL 8
- PILPNT 7
- SOUNDG Sounding 7
- CTNARE Caution area 6
- TESARE 5
- BCNSPP Special purpose beacon 4
- LIGHTS Light 4
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/US4LA1DK.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4LA1DK/2.1/US4LA1DK.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4LA1DK/2.1/US4LA1DK.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1DK/2.1/US4LA1DK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1DK/2.1/US4LA1DK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1DK/2.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.1 | Nov 20, 2025 | metadata.json |