NOAA S-57 chart cell
Laguna Madre and Gulf of America
US4TX1BC
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 355
- S-57 layers
- 39
- Published
- Mar 3, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 26.40000° N
- South
- 26.10000° N
- West
- 97.20000° W
- East
- 96.90000° W
- Center
- 26.25000° N, 97.05000° W
- Bounds area
- 291 sq nm
- Feature density
- 1.22 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.1
- Smallest layer
- 1
- Largest layer
- 42
- Area sq km
- 998
- Features per sq km
- 0.3557
- COALNE Coastline 42
- SBDARE Seabed area 35
- SLCONS Shoreline construction 31
- LNDARE Land area 27
- BCNSPP Special purpose beacon 26
- DEPARE Depth area 22
- DEPCNT Depth contour 20
- LAKARE 19
- BCNLAT Lateral beacon 15
- DAYMAR 15
- WRECKS Wreck 11
- CTNARE Caution area 9
- OBSTRN Obstruction 9
- SEAARE Sea area 9
- M_QUAL Data quality 8
- PILPNT 8
- SOUNDG Sounding 6
- LNDRGN Land region 5
- LIGHTS Light 4
- PIPSOL 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/US4TX1BC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1BC/3.0/US4TX1BC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1BC/3.0/US4TX1BC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1BC/3.0/US4TX1BC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1BC/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Mar 3, 2026 | metadata.json |