NOAA S-57 chart cell
Strait of Juan De Fuca to Strait of Georgia - Northern Part
US4WA30M
- Usage band
- Approach · code 4
- Current edition
- 18.2
- Features
- 1,748
- S-57 layers
- 55
- Published
- Feb 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 49.08947° N
- South
- 48.29468° N
- West
- 123.31749° W
- East
- 122.44870° W
- Center
- 48.69207° N, 122.88309° W
- Bounds area
- 1,643 sq nm
- Feature density
- 1.0638 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.8
- Smallest layer
- 1
- Largest layer
- 374
- Area sq km
- 5,636
- Features per sq km
- 0.31017
- DEPCNT Depth contour 374
- DEPARE Depth area 312
- UWTROC Underwater rock 191
- SBDARE Seabed area 179
- SLCONS Shoreline construction 134
- COALNE Coastline 97
- LNDARE Land area 74
- LIGHTS Light 37
- WEDKLP 33
- LNDRGN Land region 30
- DAYMAR 27
- SEAARE Sea area 27
- BCNSPP Special purpose beacon 25
- OBSTRN Obstruction 24
- PILPNT 21
- M_QUAL Data quality 16
- RESARE 14
- BCNLAT Lateral beacon 12
- BUAARE 12
- LNDELV 10
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/US4WA30M.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/US4WA30M.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/US4WA30M.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/US4WA30M.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/US4WA30M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/US4WA30M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA30M/18.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 18.2 | Feb 9, 2026 | metadata.json |