NOAA S-57 chart cell
Nehalem River, OR
US4OR1MD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 284
- S-57 layers
- 26
- Published
- Dec 10, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 45.90000° N
- South
- 45.60000° N
- West
- 124.20000° W
- East
- 123.90000° W
- Center
- 45.75000° N, 124.05000° W
- Bounds area
- 226 sq nm
- Feature density
- 1.2545 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 10.9
- Smallest layer
- 1
- Largest layer
- 56
- Area sq km
- 776
- Features per sq km
- 0.36575
- COALNE Coastline 56
- LNDARE Land area 51
- SBDARE Seabed area 28
- DEPCNT Depth contour 27
- DEPARE Depth area 21
- RIVERS River 20
- LNDELV 19
- UWTROC Underwater rock 17
- CBLSUB 7
- M_QUAL Data quality 6
- BUAARE 5
- LNDRGN Land region 5
- SLCONS Shoreline construction 5
- SOUNDG Sounding 3
- VEGATN 2
- WRECKS Wreck 2
- ADMARE 1
- CTNARE Caution area 1
- M_COVR Coverage 1
- M_NPUB 1
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/US4OR1MD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4OR1MD/1.0/US4OR1MD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4OR1MD/1.0/US4OR1MD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4OR1MD/1.0/US4OR1MD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4OR1MD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 10, 2025 | metadata.json |