NOAA S-57 chart cell
Florida Keys - Barnes Sound to Biscayne Bay and Straits of Florida
US4FL1HY
- Usage band
- Approach · code 4
- Current edition
- 2.2
- Features
- 2,827
- S-57 layers
- 49
- Published
- Jan 29, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 25.50000° N
- South
- 25.20000° N
- West
- 80.40000° W
- East
- 80.10000° W
- Center
- 25.35000° N, 80.25000° W
- Bounds area
- 293 sq nm
- Feature density
- 9.642 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 57.7
- Smallest layer
- 1
- Largest layer
- 628
- Area sq km
- 1,006
- Features per sq km
- 2.81115
- DEPCNT Depth contour 628
- DEPARE Depth area 605
- SBDARE Seabed area 187
- LNDARE Land area 180
- DAYMAR 173
- UWTROC Underwater rock 172
- BCNLAT Lateral beacon 163
- COALNE Coastline 135
- OBSTRN Obstruction 70
- SEAARE Sea area 49
- SLCONS Shoreline construction 47
- LIGHTS Light 34
- M_QUAL Data quality 31
- BCNSPP Special purpose beacon 29
- WRECKS Wreck 28
- LNDRGN Land region 27
- BOYLAT Lateral buoy 26
- RETRFL 24
- LNDMRK 21
- BOYSPP Special purpose buoy 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/US4FL1HY.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/US4FL1HY.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/US4FL1HY.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/US4FL1HY.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/US4FL1HY.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/US4FL1HY.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1HY/2.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.2 | Jan 29, 2026 | metadata.json |