NOAA S-57 chart cell
Prince William Sound, Alaska
US4AK4QO
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 571
- S-57 layers
- 23
- Published
- Dec 7, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.00000° N
- South
- 59.70000° N
- West
- 147.60000° W
- East
- 147.00000° W
- Center
- 59.85000° N, 147.30000° W
- Bounds area
- 326 sq nm
- Feature density
- 1.752 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 24.8
- Smallest layer
- 1
- Largest layer
- 178
- Area sq km
- 1,118
- Features per sq km
- 0.51081
- UWTROC Underwater rock 178
- SBDARE Seabed area 101
- DEPCNT Depth contour 79
- DEPARE Depth area 54
- COALNE Coastline 45
- LNDARE Land area 38
- RIVERS River 20
- M_QUAL Data quality 10
- SOUNDG Sounding 10
- LAKARE 8
- LNDELV 6
- OBSTRN Obstruction 6
- SEAARE Sea area 4
- LNDRGN Land region 2
- MAGVAR Magnetic variation 2
- ADMARE 1
- CONZNE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 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/US4AK4QO.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4QO/1.0/US4AK4QO.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4QO/1.0/US4AK4QO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4QO/1.0/US4AK4QO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4QO/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 7, 2023 | metadata.json |