NOAA S-57 chart cell
Gulf of America
US4FL1SP
- Usage band
- Approach · code 4
- Current edition
- 4.0
- Features
- 234
- S-57 layers
- 25
- Published
- Feb 10, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 28.80000° N
- South
- 28.50000° N
- West
- 83.10000° W
- East
- 82.80000° W
- Center
- 28.65000° N, 82.95000° W
- Bounds area
- 285 sq nm
- Feature density
- 0.8219 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.4
- Smallest layer
- 1
- Largest layer
- 73
- Area sq km
- 977
- Features per sq km
- 0.23962
- SBDARE Seabed area 73
- DEPARE Depth area 45
- DEPCNT Depth contour 44
- WRECKS Wreck 12
- WEDKLP 11
- OBSTRN Obstruction 6
- BCNSPP Special purpose beacon 5
- DAYMAR 5
- UWTROC Underwater rock 5
- BOYSPP Special purpose buoy 4
- LIGHTS Light 4
- SOUNDG Sounding 4
- ADMARE 2
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- BCNLAT Lateral beacon 1
- BOYLAT Lateral buoy 1
- CONZNE 1
- COSARE 1
- EXEZNE 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/US4FL1SP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1SP/4.0/US4FL1SP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1SP/4.0/US4FL1SP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1SP/4.0/US4FL1SP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1SP/4.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 4.0 | Feb 10, 2026 | metadata.json |