NOAA S-57 chart cell
California
US4CA2HF
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 2,016
- S-57 layers
- 46
- Published
- Jun 17, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.60000° N
- South
- 39.30000° N
- West
- 123.90000° W
- East
- 123.60000° W
- Center
- 39.45000° N, 123.75000° W
- Bounds area
- 251 sq nm
- Feature density
- 8.0471 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 43.8
- Smallest layer
- 1
- Largest layer
- 470
- Area sq km
- 859
- Features per sq km
- 2.34617
- LNDARE Land area 470
- UWTROC Underwater rock 450
- DEPCNT Depth contour 260
- DEPARE Depth area 239
- COALNE Coastline 119
- BUISGL 112
- SBDARE Seabed area 90
- RIVERS River 68
- SLCONS Shoreline construction 47
- WEDKLP 18
- OBSTRN Obstruction 14
- LNDELV 13
- M_QUAL Data quality 13
- BUAARE 10
- LNDRGN Land region 9
- LIGHTS Light 8
- SLOTOP 8
- SOUNDG Sounding 8
- BRIDGE 7
- SEAARE Sea area 7
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/US4CA2HF.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4CA2HF/1.1/US4CA2HF.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4CA2HF/1.1/US4CA2HF.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2HF/1.1/US4CA2HF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2HF/1.1/US4CA2HF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2HF/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Jun 17, 2026 | metadata.json |