NOAA S-57 chart cell
Alaska
US4AK5LL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 6,872
- S-57 layers
- 33
- Published
- Mar 24, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.70000° N
- South
- 56.40000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 56.55000° N, 133.50000° W
- Bounds area
- 358 sq nm
- Feature density
- 19.2135 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 208.2
- Smallest layer
- 1
- Largest layer
- 2,027
- Area sq km
- 1,227
- Features per sq km
- 5.60175
- LNDARE Land area 2,027
- COALNE Coastline 2,007
- UWTROC Underwater rock 1,171
- SBDARE Seabed area 534
- DEPCNT Depth contour 384
- DEPARE Depth area 319
- OBSTRN Obstruction 131
- WEDKLP 81
- LNDELV 73
- RIVERS River 28
- LNDRGN Land region 24
- M_QUAL Data quality 16
- SEAARE Sea area 15
- SOUNDG Sounding 15
- PILPNT 12
- M_NPUB 6
- MAGVAR Magnetic variation 6
- SLOGRD 5
- CTNARE Caution area 3
- MORFAC 2
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/US4AK5LL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5LL/1.0/US4AK5LL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5LL/1.0/US4AK5LL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5LL/1.0/US4AK5LL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5LL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 24, 2025 | metadata.json |