NOAA S-57 chart cell
Alaska
US4AK6SN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 25
- S-57 layers
- 15
- Published
- Jun 6, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 65.10000° N
- South
- 64.80000° N
- West
- 166.20000° W
- East
- 165.60000° W
- Center
- 64.95000° N, 165.90000° W
- Bounds area
- 275 sq nm
- Feature density
- 0.091 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 1.7
- Smallest layer
- 1
- Largest layer
- 8
- Area sq km
- 942
- Features per sq km
- 0.02653
- RIVERS River 8
- LNDRGN Land region 2
- M_NPUB 2
- SEAARE Sea area 2
- BUAARE 1
- COALNE Coastline 1
- DEPARE Depth area 1
- LNDARE Land area 1
- LNDELV 1
- M_COVR Coverage 1
- M_NSYS 1
- M_QUAL Data quality 1
- MAGVAR Magnetic variation 1
- SBDARE Seabed area 1
- SOUNDG Sounding 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/US4AK6SN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6SN/1.0/US4AK6SN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6SN/1.0/US4AK6SN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6SN/1.0/US4AK6SN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6SN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jun 6, 2023 | metadata.json |