NOAA S-57 chart cell
San Francisco to Cape Flattery
US2WC12M
- Usage band
- General · code 2
- Current edition
- 28.1
- Features
- 304
- S-57 layers
- 20
- Published
- May 11, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 48.14187° N
- South
- 37.32427° N
- West
- 134.01015° W
- East
- 127.93376° W
- Center
- 42.73307° N, 130.97196° W
- Bounds area
- 173,790 sq nm
- Feature density
- 0.0017 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.2
- Smallest layer
- 1
- Largest layer
- 107
- Area sq km
- 596,084
- Features per sq km
- 0.00051
- DEPARE Depth area 107
- DEPCNT Depth contour 107
- CBLSUB 24
- SBDARE Seabed area 15
- SEAARE Sea area 15
- MAGVAR Magnetic variation 8
- BOYSPP Special purpose buoy 4
- LIGHTS Light 4
- OBSTRN Obstruction 4
- SOUNDG Sounding 3
- ADMARE 2
- M_COVR Coverage 2
- M_QUAL Data quality 2
- COSARE 1
- EXEZNE 1
- FSHZNE 1
- M_NPUB 1
- M_NSYS 1
- MIPARE 1
- RESARE 1
Nearby Chart Cells
General 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/US2WC12M.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/general/US2WC12M/28.1/US2WC12M.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/general/US2WC12M/28.1/US2WC12M.001
- GeoJSON https://charts.openships.ai/noaa/s57/general/US2WC12M/28.1/US2WC12M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/general/US2WC12M/28.1/US2WC12M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/general/US2WC12M/28.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 28.1 | May 11, 2026 | metadata.json |