NOAA S-57 chart cell
Gulf of America
US4FL1IT
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 146
- S-57 layers
- 22
- Published
- Mar 5, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 25.80000° N
- South
- 25.50000° N
- West
- 81.90000° W
- East
- 81.60000° W
- Center
- 25.65000° N, 81.75000° W
- Bounds area
- 292 sq nm
- Feature density
- 0.4992 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.6
- Smallest layer
- 1
- Largest layer
- 44
- Area sq km
- 1,003
- Features per sq km
- 0.14554
- SBDARE Seabed area 44
- DEPCNT Depth contour 36
- DEPARE Depth area 34
- SOUNDG Sounding 8
- SEAARE Sea area 3
- ADMARE 2
- M_NPUB 2
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- BCNSPP Special purpose beacon 1
- CONZNE 1
- CTNARE Caution area 1
- DAYMAR 1
- EXEZNE 1
- FOGSIG 1
- LIGHTS Light 1
- LNDARE Land area 1
- LNDMRK 1
- M_COVR Coverage 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/US4FL1IT.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1IT/2.0/US4FL1IT.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1IT/2.0/US4FL1IT.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1IT/2.0/US4FL1IT.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1IT/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Mar 5, 2025 | metadata.json |