NOAA S-57 chart cell
North Pacific Ocean - Offshore of Eureka, CA
US4CA2MD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 113
- S-57 layers
- 22
- Published
- Apr 22, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.10000° N
- South
- 40.80000° N
- West
- 124.50000° W
- East
- 124.20000° W
- Center
- 40.95000° N, 124.35000° W
- Bounds area
- 245 sq nm
- Feature density
- 0.4611 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.1
- Smallest layer
- 1
- Largest layer
- 31
- Area sq km
- 840
- Features per sq km
- 0.13445
- SBDARE Seabed area 31
- DEPCNT Depth contour 21
- DEPARE Depth area 19
- SOUNDG Sounding 12
- M_QUAL Data quality 9
- ADMARE 2
- M_NPUB 2
- PIPSOL 2
- SEAARE Sea area 2
- BOYSPP Special purpose buoy 1
- COALNE Coastline 1
- CONZNE 1
- COSARE 1
- DMPGRD 1
- EXEZNE 1
- LIGHTS Light 1
- LNDARE Land area 1
- M_COVR Coverage 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/US4CA2MD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA2MD/1.0/US4CA2MD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2MD/1.0/US4CA2MD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2MD/1.0/US4CA2MD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2MD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 22, 2026 | metadata.json |