NOAA S-57 chart cell
Alaska
US4AK6XR
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 77
- S-57 layers
- 17
- Published
- Mar 4, 2021
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 66.60000° N
- South
- 66.30000° N
- West
- 163.80000° W
- East
- 163.20000° W
- Center
- 66.45000° N, 163.50000° W
- Bounds area
- 259 sq nm
- Feature density
- 0.297 / sq nm
Chart Statistics
17 largest layers shown
- Average features per layer
- 4.5
- Smallest layer
- 1
- Largest layer
- 20
- Area sq km
- 889
- Features per sq km
- 0.08659
- M_QUAL Data quality 20
- COALNE Coastline 12
- RIVERS River 9
- SOUNDG Sounding 8
- DEPARE Depth area 4
- DEPCNT Depth contour 3
- LNDARE Land area 3
- LNDRGN Land region 3
- MAGVAR Magnetic variation 3
- SBDARE Seabed area 3
- M_NPUB 2
- SEAARE Sea area 2
- BCNSPP Special purpose beacon 1
- DAYMAR 1
- LIGHTS Light 1
- M_COVR Coverage 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/US4AK6XR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6XR/1.0/US4AK6XR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6XR/1.0/US4AK6XR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6XR/1.0/US4AK6XR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6XR/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 4, 2021 | metadata.json |