NOAA S-57 chart cell
Alaska
US4AK6ZS
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 292
- S-57 layers
- 19
- Published
- May 12, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 67.20000° N
- South
- 66.90000° N
- West
- 163.20000° W
- East
- 162.60000° W
- Center
- 67.05000° N, 162.90000° W
- Bounds area
- 253 sq nm
- Feature density
- 1.1541 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 15.4
- Smallest layer
- 1
- Largest layer
- 63
- Area sq km
- 868
- Features per sq km
- 0.33648
- LAKARE 63
- RIVERS River 44
- COALNE Coastline 35
- DEPARE Depth area 35
- DEPCNT Depth contour 35
- M_QUAL Data quality 31
- LNDARE Land area 18
- LNDRGN Land region 13
- MAGVAR Magnetic variation 4
- M_NPUB 3
- SEAARE Sea area 3
- BUAARE 1
- CBLSUB 1
- M_COVR Coverage 1
- M_NSYS 1
- SOUNDG Sounding 1
- TESARE 1
- UNSARE 1
- WATTUR 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/US4AK6ZS.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6ZS/2.0/US4AK6ZS.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6ZS/2.0/US4AK6ZS.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6ZS/2.0/US4AK6ZS.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6ZS/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | May 12, 2026 | metadata.json |