NOAA S-57 chart cell
Prince William Sound, Alaska
US4AK4RR
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 83
- S-57 layers
- 25
- Published
- Mar 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.30000° N
- South
- 60.00000° N
- West
- 145.80000° W
- East
- 145.20000° W
- Center
- 60.15000° N, 145.50000° W
- Bounds area
- 323 sq nm
- Feature density
- 0.257 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 3.3
- Smallest layer
- 1
- Largest layer
- 16
- Area sq km
- 1,108
- Features per sq km
- 0.07493
- DEPARE Depth area 16
- DEPCNT Depth contour 14
- LNDARE Land area 11
- M_QUAL Data quality 7
- SOUNDG Sounding 6
- SBDARE Seabed area 4
- BOYSAW 3
- COALNE Coastline 3
- LIGHTS Light 2
- M_NPUB 2
- ADMARE 1
- BCNSPP Special purpose beacon 1
- CONZNE 1
- CTNARE Caution area 1
- DAYMAR 1
- EXEZNE 1
- FAIRWY Fairway 1
- FOGSIG 1
- M_COVR Coverage 1
- M_NSYS 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/US4AK4RR.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK4RR/1.1/US4AK4RR.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK4RR/1.1/US4AK4RR.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4RR/1.1/US4AK4RR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4RR/1.1/US4AK4RR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4RR/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Mar 14, 2025 | metadata.json |