NOAA S-57 chart cell
Alaska
US4AK6DB
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 123
- S-57 layers
- 22
- Published
- Nov 7, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.60000° N
- South
- 60.30000° N
- West
- 173.40000° W
- East
- 172.80000° W
- Center
- 60.45000° N, 173.10000° W
- Bounds area
- 320 sq nm
- Feature density
- 0.3844 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.6
- Smallest layer
- 1
- Largest layer
- 33
- Area sq km
- 1,098
- Features per sq km
- 0.11206
- LNDARE Land area 33
- UWTROC Underwater rock 24
- LNDRGN Land region 10
- OBSTRN Obstruction 9
- DEPARE Depth area 7
- COALNE Coastline 6
- DEPCNT Depth contour 5
- LNDELV 4
- M_QUAL Data quality 4
- SBDARE Seabed area 4
- SEAARE Sea area 3
- SOUNDG Sounding 3
- LAKARE 2
- ACHARE Anchorage area 1
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 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/US4AK6DB.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6DB/2.0/US4AK6DB.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6DB/2.0/US4AK6DB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6DB/2.0/US4AK6DB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6DB/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Nov 7, 2023 | metadata.json |