NOAA S-57 chart cell
Alaska
US4AK6CB
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 13
- S-57 layers
- 11
- Published
- Nov 7, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.30000° N
- South
- 60.00000° N
- West
- 173.40000° W
- East
- 172.80000° W
- Center
- 60.15000° N, 173.10000° W
- Bounds area
- 323 sq nm
- Feature density
- 0.0403 / sq nm
Chart Statistics
11 largest layers shown
- Average features per layer
- 1.2
- Smallest layer
- 1
- Largest layer
- 3
- Area sq km
- 1,108
- Features per sq km
- 0.01174
- M_QUAL Data quality 3
- ADMARE 1
- CONZNE 1
- DEPARE Depth area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SEAARE Sea area 1
- SOUNDG Sounding 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/US4AK6CB.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6CB/2.0/US4AK6CB.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6CB/2.0/US4AK6CB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6CB/2.0/US4AK6CB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6CB/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Nov 7, 2023 | metadata.json |