NOAA S-57 chart cell
Gulf of Alaska
US4AK5VA
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 595
- S-57 layers
- 30
- Published
- Dec 5, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.70000° N
- South
- 59.40000° N
- West
- 140.40000° W
- East
- 139.80000° W
- Center
- 59.55000° N, 140.10000° W
- Bounds area
- 329 sq nm
- Feature density
- 1.8094 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19.8
- Smallest layer
- 1
- Largest layer
- 170
- Area sq km
- 1,128
- Features per sq km
- 0.52753
- DEPARE Depth area 170
- DEPCNT Depth contour 159
- SBDARE Seabed area 82
- UWTROC Underwater rock 59
- LNDARE Land area 29
- COALNE Coastline 27
- LNDRGN Land region 14
- SOUNDG Sounding 11
- M_QUAL Data quality 10
- WATTUR 5
- SEAARE Sea area 4
- LIGHTS Light 3
- BOYLAT Lateral buoy 2
- FOGSIG 2
- MAGVAR Magnetic variation 2
- RIVERS River 2
- ADMARE 1
- BCNSPP Special purpose beacon 1
- BRIDGE 1
- CONZNE 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/US4AK5VA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5VA/1.0/US4AK5VA.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5VA/1.0/US4AK5VA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5VA/1.0/US4AK5VA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5VA/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 5, 2023 | metadata.json |