NOAA S-57 chart cell
Alaska
US4AK5KN
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 2,340
- S-57 layers
- 39
- Published
- May 21, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.40000° N
- South
- 56.10000° N
- West
- 132.60000° W
- East
- 132.00000° W
- Center
- 56.25000° N, 132.30000° W
- Bounds area
- 360 sq nm
- Feature density
- 6.4911 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 60
- Smallest layer
- 1
- Largest layer
- 570
- Area sq km
- 1,236
- Features per sq km
- 1.89249
- DEPCNT Depth contour 570
- DEPARE Depth area 547
- UWTROC Underwater rock 330
- SBDARE Seabed area 265
- COALNE Coastline 169
- RIVERS River 133
- LNDARE Land area 55
- LNDRGN Land region 32
- SEAARE Sea area 24
- PILPNT 20
- M_QUAL Data quality 19
- OBSTRN Obstruction 17
- SOUNDG Sounding 17
- DAYMAR 15
- SLOTOP 14
- BUISGL 12
- LNDELV 12
- VEGATN 12
- BCNLAT Lateral beacon 10
- LIGHTS Light 9
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/US4AK5KN.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5KN/1.1/US4AK5KN.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5KN/1.1/US4AK5KN.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5KN/1.1/US4AK5KN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5KN/1.1/US4AK5KN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5KN/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | May 21, 2025 | metadata.json |