NOAA S-57 chart cell
Alaska
US4AK5OI
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,124
- S-57 layers
- 36
- Published
- Apr 22, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 135.60000° W
- East
- 135.00000° W
- Center
- 57.45000° N, 135.30000° W
- Bounds area
- 349 sq nm
- Feature density
- 6.0839 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 59
- Smallest layer
- 1
- Largest layer
- 444
- Area sq km
- 1,197
- Features per sq km
- 1.77378
- SBDARE Seabed area 444
- DEPCNT Depth contour 376
- DEPARE Depth area 365
- UWTROC Underwater rock 223
- RIVERS River 111
- COALNE Coastline 103
- WEDKLP 89
- LNDARE Land area 77
- SLOGRD 55
- LNDRGN Land region 37
- SEAARE Sea area 34
- OBSTRN Obstruction 33
- LNDELV 24
- M_QUAL Data quality 22
- DAYMAR 19
- LIGHTS Light 16
- SLOTOP 15
- PILPNT 13
- BCNLAT Lateral beacon 11
- SLCONS Shoreline construction 11
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/US4AK5OI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5OI/1.0/US4AK5OI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5OI/1.0/US4AK5OI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5OI/1.0/US4AK5OI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5OI/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 22, 2024 | metadata.json |