NOAA S-57 chart cell
Alaska
US4AK5OL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,190
- S-57 layers
- 34
- Published
- Mar 19, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 57.45000° N, 133.50000° W
- Bounds area
- 349 sq nm
- Feature density
- 3.4086 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 35
- Smallest layer
- 1
- Largest layer
- 264
- Area sq km
- 1,197
- Features per sq km
- 0.99379
- DEPCNT Depth contour 264
- DEPARE Depth area 232
- SBDARE Seabed area 175
- COALNE Coastline 154
- UWTROC Underwater rock 121
- LNDARE Land area 60
- RIVERS River 45
- LNDELV 19
- M_QUAL Data quality 18
- OBSTRN Obstruction 17
- SLOGRD 16
- SEAARE Sea area 12
- SLCONS Shoreline construction 11
- VEGATN 6
- SOUNDG Sounding 5
- BUISGL 4
- LNDRGN Land region 4
- LIGHTS Light 3
- M_NPUB 3
- MAGVAR Magnetic variation 3
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/US4AK5OL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5OL/1.0/US4AK5OL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5OL/1.0/US4AK5OL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5OL/1.0/US4AK5OL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5OL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 19, 2025 | metadata.json |