NOAA S-57 chart cell
Estero Bay, CA
US4CA1LL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 233
- S-57 layers
- 22
- Published
- May 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 35.70000° N
- South
- 35.40000° N
- West
- 120.90000° W
- East
- 120.60000° W
- Center
- 35.55000° N, 120.75000° W
- Bounds area
- 264 sq nm
- Feature density
- 0.8827 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 10.6
- Smallest layer
- 1
- Largest layer
- 80
- Area sq km
- 905
- Features per sq km
- 0.25735
- UWTROC Underwater rock 80
- BUISGL 31
- LNDARE Land area 24
- COALNE Coastline 18
- DEPARE Depth area 18
- DEPCNT Depth contour 17
- SBDARE Seabed area 9
- PIPSOL 5
- RIVERS River 5
- SLOGRD 5
- BUAARE 3
- LNDELV 3
- OBSTRN Obstruction 3
- SOUNDG Sounding 3
- M_QUAL Data quality 2
- CBLSUB 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 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/US4CA1LL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1LL/1.0/US4CA1LL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1LL/1.0/US4CA1LL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1LL/1.0/US4CA1LL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1LL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 20, 2026 | metadata.json |