NOAA S-57 chart cell
Strait of Georgia
US4WA1LI
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 603
- S-57 layers
- 40
- Published
- Feb 5, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 49.00222° N
- South
- 48.88446° N
- West
- 123.11333° W
- East
- 122.70000° W
- Center
- 48.94334° N, 122.90667° W
- Bounds area
- 115 sq nm
- Feature density
- 5.2324 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.1
- Smallest layer
- 1
- Largest layer
- 101
- Area sq km
- 395
- Features per sq km
- 1.52551
- DEPCNT Depth contour 101
- SLCONS Shoreline construction 88
- UWTROC Underwater rock 72
- SBDARE Seabed area 62
- DEPARE Depth area 55
- PILPNT 40
- COALNE Coastline 21
- LIGHTS Light 17
- DAYMAR 15
- MORFAC 12
- OBSTRN Obstruction 12
- BCNSPP Special purpose beacon 11
- M_QUAL Data quality 11
- SEAARE Sea area 9
- LNDARE Land area 8
- BUISGL 7
- BCNLAT Lateral beacon 6
- BUAARE 6
- LNDRGN Land region 5
- RIVERS River 5
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/US4WA1LI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1LI/1.0/US4WA1LI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1LI/1.0/US4WA1LI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1LI/1.0/US4WA1LI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1LI/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 5, 2026 | metadata.json |