NOAA S-57 chart cell
Saint Joseph Sound and Safety Harbor
US4FL1QQ
- Usage band
- Approach · code 4
- Current edition
- 7.0
- Features
- 2,517
- S-57 layers
- 53
- Published
- Apr 15, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 28.20000° N
- South
- 27.90000° N
- West
- 82.80000° W
- East
- 82.50000° W
- Center
- 28.05000° N, 82.65000° W
- Bounds area
- 286 sq nm
- Feature density
- 8.7906 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 47.5
- Smallest layer
- 1
- Largest layer
- 387
- Area sq km
- 982
- Features per sq km
- 2.56293
- COALNE Coastline 387
- SLCONS Shoreline construction 367
- DEPCNT Depth contour 211
- DEPARE Depth area 203
- DAYMAR 172
- BCNLAT Lateral beacon 168
- LNDARE Land area 157
- LNDRGN Land region 96
- PILPNT 86
- VEGATN 83
- M_QUAL Data quality 69
- BRIDGE 46
- RIVERS River 43
- BCNSPP Special purpose beacon 42
- OBSTRN Obstruction 39
- SEAARE Sea area 32
- BUAARE 26
- LNDMRK 26
- LAKARE 23
- SBDARE Seabed area 23
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/US4FL1QQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1QQ/7.0/US4FL1QQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1QQ/7.0/US4FL1QQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1QQ/7.0/US4FL1QQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1QQ/7.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 7.0 | Apr 15, 2026 | metadata.json |