NOAA S-57 chart cell
Gulf of Alaska
US4AK5SF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 48
- S-57 layers
- 18
- Published
- Nov 29, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.80000° N
- South
- 58.50000° N
- West
- 137.40000° W
- East
- 136.80000° W
- Center
- 58.65000° N, 137.10000° W
- Bounds area
- 338 sq nm
- Feature density
- 0.1422 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 2.7
- Smallest layer
- 1
- Largest layer
- 15
- Area sq km
- 1,158
- Features per sq km
- 0.04145
- ICEARE 15
- LNDELV 9
- SLOGRD 7
- LNDRGN Land region 2
- RIVERS River 2
- COALNE Coastline 1
- DEPARE Depth area 1
- LNDARE Land area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- MAGVAR Magnetic variation 1
- OBSTRN Obstruction 1
- RESARE 1
- SEAARE Sea area 1
- SLOTOP 1
- UWTROC Underwater rock 1
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/US4AK5SF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5SF/1.0/US4AK5SF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5SF/1.0/US4AK5SF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5SF/1.0/US4AK5SF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5SF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 29, 2024 | metadata.json |