NOAA S-57 chart cell
Alaska
US4AK3OV
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 1,893
- S-57 layers
- 24
- Published
- Jun 5, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.10000° N
- South
- 55.80000° N
- West
- 159.00000° W
- East
- 158.40000° W
- Center
- 55.95000° N, 158.70000° W
- Bounds area
- 363 sq nm
- Feature density
- 5.2103 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 78.9
- Smallest layer
- 1
- Largest layer
- 487
- Area sq km
- 1,246
- Features per sq km
- 1.51909
- UWTROC Underwater rock 487
- LNDARE Land area 392
- SBDARE Seabed area 153
- COALNE Coastline 150
- WEDKLP 144
- DEPARE Depth area 126
- DEPCNT Depth contour 99
- OBSTRN Obstruction 78
- LNDELV 74
- M_VDAT 74
- RIVERS River 35
- M_QUAL Data quality 27
- SEAARE Sea area 20
- LNDRGN Land region 12
- LAKARE 6
- SOUNDG Sounding 4
- MAGVAR Magnetic variation 3
- ADMARE 2
- TESARE 2
- BUAARE 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/US4AK3OV.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3OV/2.0/US4AK3OV.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3OV/2.0/US4AK3OV.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3OV/2.0/US4AK3OV.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3OV/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 5, 2026 | metadata.json |