NOAA S-57 chart cell
California
US4CA2GF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,455
- S-57 layers
- 42
- Published
- May 29, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.30000° N
- South
- 39.00000° N
- West
- 123.90000° W
- East
- 123.60000° W
- Center
- 39.15000° N, 123.75000° W
- Bounds area
- 252 sq nm
- Feature density
- 5.783 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 34.6
- Smallest layer
- 1
- Largest layer
- 388
- Area sq km
- 863
- Features per sq km
- 1.68605
- LNDARE Land area 388
- UWTROC Underwater rock 354
- DEPCNT Depth contour 154
- DEPARE Depth area 135
- SBDARE Seabed area 79
- WEDKLP 76
- COALNE Coastline 61
- RIVERS River 56
- LNDELV 22
- OBSTRN Obstruction 19
- M_QUAL Data quality 17
- SOUNDG Sounding 12
- SEAARE Sea area 10
- LNDRGN Land region 9
- WATTUR 7
- SLOTOP 6
- BUAARE 4
- BUISGL 4
- FOGSIG 4
- LNDMRK 4
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/US4CA2GF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA2GF/1.0/US4CA2GF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2GF/1.0/US4CA2GF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2GF/1.0/US4CA2GF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2GF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 29, 2026 | metadata.json |