NOAA S-57 chart cell
Gulf of America
US4TX1LL
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 116
- S-57 layers
- 25
- Published
- Apr 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 29.10000° N
- South
- 28.80000° N
- West
- 94.50000° W
- East
- 94.20000° W
- Center
- 28.95000° N, 94.35000° W
- Bounds area
- 284 sq nm
- Feature density
- 0.4086 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.6
- Smallest layer
- 1
- Largest layer
- 23
- Area sq km
- 974
- Features per sq km
- 0.11913
- PIPSOL 23
- SBDARE Seabed area 22
- M_QUAL Data quality 15
- OFSPLF 10
- OBSTRN Obstruction 8
- DEPCNT Depth contour 6
- SOUNDG Sounding 6
- DEPARE Depth area 5
- FAIRWY Fairway 3
- LIGHTS Light 2
- WRECKS Wreck 2
- BOYLAT Lateral buoy 1
- BOYSPP Special purpose buoy 1
- CONZNE 1
- COSARE 1
- EXEZNE 1
- FOGSIG 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 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/US4TX1LL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1LL/2.0/US4TX1LL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1LL/2.0/US4TX1LL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1LL/2.0/US4TX1LL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1LL/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 9, 2026 | metadata.json |