NOAA S-57 chart cell
Columbia River Entrance to Portland
US4OR1NG
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 1,575
- S-57 layers
- 50
- Published
- Nov 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 46.20000° N
- South
- 45.90000° N
- West
- 123.30000° W
- East
- 123.00000° W
- Center
- 46.05000° N, 123.15000° W
- Bounds area
- 225 sq nm
- Feature density
- 6.9947 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.5
- Smallest layer
- 1
- Largest layer
- 317
- Area sq km
- 772
- Features per sq km
- 2.03934
- DEPCNT Depth contour 317
- PILPNT 294
- DEPARE Depth area 275
- SLCONS Shoreline construction 121
- COALNE Coastline 83
- OBSTRN Obstruction 52
- MORFAC 49
- LNDARE Land area 44
- LIGHTS Light 39
- M_QUAL Data quality 29
- DAYMAR 24
- BCNLAT Lateral beacon 23
- RIVERS River 23
- CBLOHD 22
- SBDARE Seabed area 20
- BRIDGE 15
- PONTON 14
- LNDRGN Land region 13
- SEAARE Sea area 13
- SOUNDG Sounding 12
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/US4OR1NG.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/US4OR1NG.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/US4OR1NG.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/US4OR1NG.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/US4OR1NG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/US4OR1NG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4OR1NG/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Nov 26, 2025 | metadata.json |