NOAA S-57 chart cell
California
US4CA2IF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 298
- S-57 layers
- 21
- Published
- May 29, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.90000° N
- South
- 39.60000° N
- West
- 123.90000° W
- East
- 123.60000° W
- Center
- 39.75000° N, 123.75000° W
- Bounds area
- 249 sq nm
- Feature density
- 1.1947 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 14.2
- Smallest layer
- 1
- Largest layer
- 138
- Area sq km
- 856
- Features per sq km
- 0.34831
- LNDARE Land area 138
- UWTROC Underwater rock 45
- SBDARE Seabed area 28
- COALNE Coastline 13
- DEPARE Depth area 13
- DEPCNT Depth contour 11
- LNDRGN Land region 9
- RIVERS River 8
- WEDKLP 7
- BUAARE 5
- LNDELV 5
- M_QUAL Data quality 4
- OBSTRN Obstruction 2
- SLOGRD 2
- SOUNDG Sounding 2
- ADMARE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 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/US4CA2IF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA2IF/1.0/US4CA2IF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2IF/1.0/US4CA2IF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2IF/1.0/US4CA2IF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2IF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 29, 2026 | metadata.json |