NOAA S-57 chart cell
Alaska
US4AK3KU
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 636
- S-57 layers
- 26
- Published
- Jun 2, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.90000° N
- South
- 54.60000° N
- West
- 159.60000° W
- East
- 159.00000° W
- Center
- 54.75000° N, 159.30000° W
- Bounds area
- 374 sq nm
- Feature density
- 1.6983 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 24.5
- Smallest layer
- 1
- Largest layer
- 164
- Area sq km
- 1,284
- Features per sq km
- 0.49514
- DEPARE Depth area 164
- DEPCNT Depth contour 164
- SBDARE Seabed area 66
- M_QUAL Data quality 47
- LNDARE Land area 31
- LNDELV 31
- WEDKLP 26
- UWTROC Underwater rock 25
- LAKARE 21
- RIVERS River 20
- SOUNDG Sounding 13
- COALNE Coastline 5
- SEAARE Sea area 4
- SLOGRD 4
- ADMARE 2
- M_NPUB 2
- OBSTRN Obstruction 2
- CONZNE 1
- COSARE 1
- EXEZNE 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/US4AK3KU.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3KU/2.0/US4AK3KU.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3KU/2.0/US4AK3KU.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3KU/2.0/US4AK3KU.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3KU/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 2, 2026 | metadata.json |