NOAA S-57 chart cell
Santa Monica Basin - South of Point Dume, CA
US4CA1FR
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 52
- S-57 layers
- 24
- Published
- May 14, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 33.90000° N
- South
- 33.60000° N
- West
- 119.10000° W
- East
- 118.80000° W
- Center
- 33.75000° N, 118.95000° W
- Bounds area
- 270 sq nm
- Feature density
- 0.1928 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 2.2
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 925
- Features per sq km
- 0.0562
- DEPARE Depth area 7
- DEPCNT Depth contour 6
- SBDARE Seabed area 5
- CBLSUB 4
- M_QUAL Data quality 4
- SOUNDG Sounding 3
- M_NPUB 2
- SEAARE Sea area 2
- TESARE 2
- TSSBND 2
- TSSLPT 2
- BOYSPP Special purpose buoy 1
- C_AGGR 1
- CONZNE 1
- COSARE 1
- CTNARE Caution area 1
- EXEZNE 1
- LIGHTS Light 1
- M_COVR Coverage 1
- M_NSYS 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/US4CA1FR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1FR/1.0/US4CA1FR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1FR/1.0/US4CA1FR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1FR/1.0/US4CA1FR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1FR/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 14, 2026 | metadata.json |