NOAA S-57 chart cell
Gulf of America
US4FL1FR
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 299
- S-57 layers
- 28
- Published
- Jan 8, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 24.90000° N
- South
- 24.60000° N
- West
- 82.50000° W
- East
- 82.20000° W
- Center
- 24.75000° N, 82.35000° W
- Bounds area
- 295 sq nm
- Feature density
- 1.0148 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 10.7
- Smallest layer
- 1
- Largest layer
- 79
- Area sq km
- 1,011
- Features per sq km
- 0.29587
- DEPARE Depth area 79
- DEPCNT Depth contour 78
- UWTROC Underwater rock 46
- SBDARE Seabed area 39
- M_QUAL Data quality 10
- SOUNDG Sounding 9
- OBSTRN Obstruction 4
- RESARE 4
- WRECKS Wreck 4
- PILPNT 3
- SEAARE Sea area 3
- ADMARE 2
- M_NPUB 2
- MIPARE 2
- BCNSPP Special purpose beacon 1
- CONZNE 1
- COSARE 1
- DAYMAR 1
- EXEZNE 1
- FOGSIG 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/US4FL1FR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1FR/3.0/US4FL1FR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1FR/3.0/US4FL1FR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1FR/3.0/US4FL1FR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1FR/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Jan 8, 2026 | metadata.json |