NOAA S-57 chart cell
California
US4CA1GL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 81
- S-57 layers
- 15
- Published
- Apr 1, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 34.20000° N
- South
- 33.90000° N
- West
- 120.90000° W
- East
- 120.60000° W
- Center
- 34.05000° N, 120.75000° W
- Bounds area
- 269 sq nm
- Feature density
- 0.3013 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 5.4
- Smallest layer
- 1
- Largest layer
- 30
- Area sq km
- 922
- Features per sq km
- 0.08785
- DEPCNT Depth contour 30
- DEPARE Depth area 21
- M_QUAL Data quality 9
- SOUNDG Sounding 6
- RESARE 4
- MAGVAR Magnetic variation 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MIPARE 1
- SEAARE Sea area 1
- TESARE 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/US4CA1GL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1GL/1.0/US4CA1GL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1GL/1.0/US4CA1GL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1GL/1.0/US4CA1GL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1GL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 1, 2026 | metadata.json |