NOAA S-57 chart cell
Dry Tortugas - Gulf of America
US4FL1FQ
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 103
- S-57 layers
- 21
- Published
- Feb 20, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 24.90000° N
- South
- 24.60000° N
- West
- 82.80000° W
- East
- 82.50000° W
- Center
- 24.75000° N, 82.65000° W
- Bounds area
- 295 sq nm
- Feature density
- 0.3496 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.9
- Smallest layer
- 1
- Largest layer
- 25
- Area sq km
- 1,011
- Features per sq km
- 0.10192
- SBDARE Seabed area 25
- M_QUAL Data quality 24
- SOUNDG Sounding 10
- RESARE 9
- DEPARE Depth area 8
- DEPCNT Depth contour 7
- WRECKS Wreck 3
- ADMARE 2
- M_NPUB 2
- SEAARE Sea area 2
- BCNSPP Special purpose beacon 1
- BOYSPP Special purpose buoy 1
- CONZNE 1
- EXEZNE 1
- LIGHTS Light 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- MIPARE 1
- OBSTRN Obstruction 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/US4FL1FQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1FQ/2.0/US4FL1FQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1FQ/2.0/US4FL1FQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1FQ/2.0/US4FL1FQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1FQ/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Feb 20, 2025 | metadata.json |