NOAA S-57 chart cell
Alaska
US4AK6AO
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 20
- S-57 layers
- 14
- Published
- Sep 3, 2021
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.70000° N
- South
- 59.40000° N
- West
- 165.60000° W
- East
- 165.00000° W
- Center
- 59.55000° N, 165.30000° W
- Bounds area
- 329 sq nm
- Feature density
- 0.0608 / sq nm
Chart Statistics
14 largest layers shown
- Average features per layer
- 1.4
- Smallest layer
- 1
- Largest layer
- 3
- Area sq km
- 1,128
- Features per sq km
- 0.01773
- DEPARE Depth area 3
- DEPCNT Depth contour 2
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- ADMARE 1
- CONZNE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- RESARE 1
- SEAARE Sea area 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/US4AK6AO.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6AO/2.0/US4AK6AO.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6AO/2.0/US4AK6AO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6AO/2.0/US4AK6AO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6AO/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Sep 3, 2021 | metadata.json |