NOAA S-57 chart cell
Alaska
US4AK6DM
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 191
- S-57 layers
- 26
- Published
- May 13, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.60000° N
- South
- 60.30000° N
- West
- 166.80000° W
- East
- 166.20000° W
- Center
- 60.45000° N, 166.50000° W
- Bounds area
- 320 sq nm
- Feature density
- 0.5968 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 7.3
- Smallest layer
- 1
- Largest layer
- 36
- Area sq km
- 1,098
- Features per sq km
- 0.17401
- LNDARE Land area 36
- UWTROC Underwater rock 24
- COALNE Coastline 23
- SBDARE Seabed area 19
- M_QUAL Data quality 14
- SEAARE Sea area 11
- DEPARE Depth area 10
- DEPCNT Depth contour 10
- LAKARE 7
- RIVERS River 7
- OBSTRN Obstruction 6
- SOUNDG Sounding 5
- CTNARE Caution area 3
- C_ASSO 2
- LNDMRK 2
- MAGVAR Magnetic variation 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- LNDRGN Land region 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/US4AK6DM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/US4AK6DM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/US4AK6DM.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/US4AK6DM.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/US4AK6DM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/US4AK6DM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6DM/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | May 13, 2025 | metadata.json |