NOAA S-57 chart cell
North Pacific Ocean - San Simeon Point to Harlech Castle Rock, CA
US4CA1LJ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 181
- S-57 layers
- 30
- Published
- May 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 35.70000° N
- South
- 35.40000° N
- West
- 121.50000° W
- East
- 121.20000° W
- Center
- 35.55000° N, 121.35000° W
- Bounds area
- 264 sq nm
- Feature density
- 0.6857 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6
- Smallest layer
- 1
- Largest layer
- 41
- Area sq km
- 905
- Features per sq km
- 0.19992
- UWTROC Underwater rock 41
- SBDARE Seabed area 33
- LNDARE Land area 22
- DEPARE Depth area 16
- DEPCNT Depth contour 15
- WEDKLP 9
- RIVERS River 8
- COALNE Coastline 4
- SOUNDG Sounding 4
- CBLSUB 3
- M_QUAL Data quality 3
- LNDELV 2
- LNDRGN Land region 2
- RESARE 2
- SLOGRD 2
- ADMARE 1
- C_ASSO 1
- CONZNE 1
- COSARE 1
- EXEZNE 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/US4CA1LJ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1LJ/1.0/US4CA1LJ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1LJ/1.0/US4CA1LJ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1LJ/1.0/US4CA1LJ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1LJ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 20, 2026 | metadata.json |