NOAA S-57 chart cell
Mississippi River and Blind River
US4LA1HK
- Usage band
- Approach · code 4
- Current edition
- 3.3
- Features
- 854
- S-57 layers
- 47
- Published
- May 26, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.30000° N
- South
- 30.00000° N
- West
- 90.90000° W
- East
- 90.60000° W
- Center
- 30.15000° N, 90.75000° W
- Bounds area
- 281 sq nm
- Feature density
- 3.0441 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 18.2
- Smallest layer
- 1
- Largest layer
- 82
- Area sq km
- 962
- Features per sq km
- 0.88751
- COALNE Coastline 82
- DEPCNT Depth contour 78
- DEPARE Depth area 77
- LIGHTS Light 68
- MORFAC 66
- SLCONS Shoreline construction 66
- BCNLAT Lateral beacon 55
- SILTNK 45
- LNDRGN Land region 36
- BUISGL 27
- BUAARE 25
- DAYMAR 24
- OBSTRN Obstruction 20
- BCNSPP Special purpose beacon 19
- RESARE 17
- SOUNDG Sounding 15
- LAKARE 13
- SEAARE Sea area 13
- M_QUAL Data quality 12
- RIVERS River 12
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/US4LA1HK.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.003
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/US4LA1HK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4LA1HK/3.3/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.3 | May 26, 2026 | metadata.json |