NOAA S-57 chart cell
Florida Keys - Gulf of America
US4FL1FU
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 3,900
- S-57 layers
- 43
- Published
- Mar 16, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 24.90000° N
- South
- 24.60000° N
- West
- 81.60000° W
- East
- 81.30000° W
- Center
- 24.75000° N, 81.45000° W
- Bounds area
- 295 sq nm
- Feature density
- 13.2367 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 90.7
- Smallest layer
- 1
- Largest layer
- 766
- Area sq km
- 1,011
- Features per sq km
- 3.8592
- COALNE Coastline 766
- LNDARE Land area 561
- DEPCNT Depth contour 516
- DEPARE Depth area 484
- SLCONS Shoreline construction 325
- OBSTRN Obstruction 211
- SBDARE Seabed area 189
- DAYMAR 130
- BCNLAT Lateral beacon 128
- VEGATN 94
- PILPNT 59
- UWTROC Underwater rock 49
- LNDRGN Land region 47
- SEAARE Sea area 33
- CANALS 32
- BCNSPP Special purpose beacon 30
- RIVERS River 26
- WEDKLP 26
- LAKARE 23
- BRIDGE 20
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/US4FL1FU.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1FU/3.0/US4FL1FU.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1FU/3.0/US4FL1FU.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1FU/3.0/US4FL1FU.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1FU/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Mar 16, 2026 | metadata.json |