NOAA S-57 chart cell
California
US4CA2FF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 235
- S-57 layers
- 35
- Published
- May 29, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.00000° N
- South
- 38.70000° N
- West
- 123.90000° W
- East
- 123.60000° W
- Center
- 38.85000° N, 123.75000° W
- Bounds area
- 253 sq nm
- Feature density
- 0.9301 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.7
- Smallest layer
- 1
- Largest layer
- 68
- Area sq km
- 867
- Features per sq km
- 0.27117
- LNDARE Land area 68
- SBDARE Seabed area 29
- UWTROC Underwater rock 22
- DEPARE Depth area 15
- M_QUAL Data quality 15
- RIVERS River 15
- DEPCNT Depth contour 14
- COALNE Coastline 7
- SOUNDG Sounding 6
- SEAARE Sea area 5
- CBLSUB 4
- OBSTRN Obstruction 4
- SLCONS Shoreline construction 4
- BUAARE 2
- LIGHTS Light 2
- LNDMRK 2
- LNDRGN Land region 2
- SLOGRD 2
- ADMARE 1
- BOYSAW 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/US4CA2FF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA2FF/1.0/US4CA2FF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2FF/1.0/US4CA2FF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2FF/1.0/US4CA2FF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2FF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 29, 2026 | metadata.json |