NOAA S-57 chart cell
North Pacific Ocean - Lopez Point to Big Sur, CA
US4CA1NI
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 536
- S-57 layers
- 26
- Published
- May 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 36.30000° N
- South
- 36.00000° N
- West
- 121.80000° W
- East
- 121.50000° W
- Center
- 36.15000° N, 121.65000° W
- Bounds area
- 262 sq nm
- Feature density
- 2.046 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 20.6
- Smallest layer
- 1
- Largest layer
- 169
- Area sq km
- 899
- Features per sq km
- 0.59652
- LNDARE Land area 169
- UWTROC Underwater rock 102
- DEPCNT Depth contour 42
- SBDARE Seabed area 41
- DEPARE Depth area 35
- COALNE Coastline 32
- WEDKLP 32
- RIVERS River 23
- SLOGRD 17
- LNDRGN Land region 7
- BUISGL 6
- LNDELV 6
- LNDMRK 6
- SOUNDG Sounding 3
- M_NPUB 2
- M_QUAL Data quality 2
- RESARE 2
- ACHARE Anchorage area 1
- ADMARE 1
- BUAARE 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/US4CA1NI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA1NI/1.0/US4CA1NI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA1NI/1.0/US4CA1NI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA1NI/1.0/US4CA1NI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA1NI/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 20, 2026 | metadata.json |