NOAA S-57 chart cell
Grays Harbor, WA
US4WA1EF
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 1,437
- S-57 layers
- 41
- Published
- Apr 23, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 47.10000° N
- South
- 46.80000° N
- West
- 123.90000° W
- East
- 123.60000° W
- Center
- 46.95000° N, 123.75000° W
- Bounds area
- 221 sq nm
- Feature density
- 6.4884 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 35
- Smallest layer
- 1
- Largest layer
- 423
- Area sq km
- 760
- Features per sq km
- 1.89171
- PILPNT 423
- DEPCNT Depth contour 176
- DEPARE Depth area 160
- SLCONS Shoreline construction 146
- COALNE Coastline 84
- RIVERS River 43
- OBSTRN Obstruction 40
- MORFAC 34
- BRIDGE 33
- BUISGL 27
- LIGHTS Light 27
- LNDARE Land area 27
- M_QUAL Data quality 22
- BCNSPP Special purpose beacon 20
- CBLOHD 20
- LNDRGN Land region 18
- DAYMAR 17
- DRGARE 15
- BUAARE 13
- PIPARE 13
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/US4WA1EF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4WA1EF/2.0/US4WA1EF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4WA1EF/2.0/US4WA1EF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4WA1EF/2.0/US4WA1EF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4WA1EF/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 23, 2026 | metadata.json |