NOAA S-57 chart cell
Laguna Madre
US4TX1EA
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 58
- S-57 layers
- 18
- Published
- May 27, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 27.00000° N
- South
- 26.70000° N
- West
- 97.80000° W
- East
- 97.50000° W
- Center
- 26.85000° N, 97.65000° W
- Bounds area
- 289 sq nm
- Feature density
- 0.2004 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 3.2
- Smallest layer
- 1
- Largest layer
- 17
- Area sq km
- 993
- Features per sq km
- 0.05842
- LNDRGN Land region 17
- COALNE Coastline 14
- CTNARE Caution area 4
- BUAARE 3
- M_QUAL Data quality 3
- DEPARE Depth area 2
- FAIRWY Fairway 2
- FNCLNE 2
- SLCONS Shoreline construction 2
- DRGARE 1
- DYKCON 1
- LNDARE Land area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RIVERS River 1
- SEAARE Sea area 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/US4TX1EA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1EA/1.0/US4TX1EA.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1EA/1.0/US4TX1EA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1EA/1.0/US4TX1EA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1EA/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 27, 2025 | metadata.json |