NOAA S-57 chart cell
North Pacific Ocean - Point Sierra Nevada to Tide Rock, CA
US4CA1MJ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 388
- S-57 layers
- 24
- Published
- May 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 36.00000° N
- South
- 35.70000° N
- West
- 121.50000° W
- East
- 121.20000° W
- Center
- 35.85000° N, 121.35000° W
- Bounds area
- 263 sq nm
- Feature density
- 1.4754 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 16.2
- Smallest layer
- 1
- Largest layer
- 133
- Area sq km
- 902
- Features per sq km
- 0.43017
- LNDARE Land area 133
- UWTROC Underwater rock 62
- SLOGRD 29
- COALNE Coastline 27
- RIVERS River 26
- SBDARE Seabed area 26
- WEDKLP 18
- DEPARE Depth area 17
- DEPCNT Depth contour 17
- LNDELV 6
- LNDRGN Land region 6
- OBSTRN Obstruction 4
- SOUNDG Sounding 3
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- RESARE 2
- ADMARE 1
- BUAARE 1
- C_ASSO 1
- LNDMRK 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/US4CA1MJ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1MJ/1.0/US4CA1MJ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1MJ/1.0/US4CA1MJ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1MJ/1.0/US4CA1MJ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1MJ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 20, 2026 | metadata.json |