NOAA S-57 chart cell
Alaska
US4AK6TN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 60
- S-57 layers
- 16
- Published
- Jun 6, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 65.40000° N
- South
- 65.10000° N
- West
- 166.20000° W
- East
- 165.60000° W
- Center
- 65.25000° N, 165.90000° W
- Bounds area
- 272 sq nm
- Feature density
- 0.2209 / sq nm
Chart Statistics
16 largest layers shown
- Average features per layer
- 3.8
- Smallest layer
- 1
- Largest layer
- 11
- Area sq km
- 932
- Features per sq km
- 0.06439
- RIVERS River 11
- COALNE Coastline 10
- DEPARE Depth area 8
- DEPCNT Depth contour 5
- SOUNDG Sounding 4
- LNDARE Land area 3
- LNDRGN Land region 3
- M_NPUB 3
- M_QUAL Data quality 3
- SEAARE Sea area 3
- SBDARE Seabed area 2
- LNDELV 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- UWTROC Underwater rock 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/US4AK6TN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6TN/1.0/US4AK6TN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6TN/1.0/US4AK6TN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6TN/1.0/US4AK6TN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6TN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 6, 2023 | metadata.json |