NOAA S-57 chart cell
Alaska
US4AK5LN
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 1,329
- S-57 layers
- 42
- Published
- May 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.70000° N
- South
- 56.40000° N
- West
- 132.60000° W
- East
- 132.00000° W
- Center
- 56.55000° N, 132.30000° W
- Bounds area
- 358 sq nm
- Feature density
- 3.7158 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.6
- Smallest layer
- 1
- Largest layer
- 233
- Area sq km
- 1,227
- Features per sq km
- 1.08334
- DEPCNT Depth contour 233
- DEPARE Depth area 209
- BUISGL 156
- UWTROC Underwater rock 130
- SBDARE Seabed area 111
- RIVERS River 94
- COALNE Coastline 83
- LNDARE Land area 57
- SLCONS Shoreline construction 30
- LNDRGN Land region 26
- PILPNT 24
- OBSTRN Obstruction 20
- LNDELV 19
- SLOGRD 17
- M_QUAL Data quality 14
- SEAARE Sea area 14
- DAYMAR 13
- LIGHTS Light 12
- BCNSPP Special purpose beacon 8
- CBLARE 8
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/US4AK5LN.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/US4AK5LN.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/US4AK5LN.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/US4AK5LN.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/US4AK5LN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/US4AK5LN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5LN/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | May 29, 2025 | metadata.json |