NOAA S-57 chart cell
Alaska
US4AK6DC
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 93
- 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
- 172.80000° W
- East
- 172.20000° W
- Center
- 60.45000° N, 172.50000° W
- Bounds area
- 320 sq nm
- Feature density
- 0.2906 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.2
- Smallest layer
- 1
- Largest layer
- 13
- Area sq km
- 1,098
- Features per sq km
- 0.08473
- LNDARE Land area 13
- DEPARE Depth area 11
- DEPCNT Depth contour 9
- OBSTRN Obstruction 8
- LNDRGN Land region 7
- COALNE Coastline 6
- M_QUAL Data quality 5
- SBDARE Seabed area 5
- UWTROC Underwater rock 5
- LAKARE 4
- LNDELV 4
- ADMARE 2
- CONZNE 2
- EXEZNE 2
- RIVERS River 2
- SEAARE Sea area 2
- ACHARE Anchorage area 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/US4AK6DC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6DC/2.0/US4AK6DC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6DC/2.0/US4AK6DC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6DC/2.0/US4AK6DC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6DC/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Nov 7, 2023 | metadata.json |