NOAA S-57 chart cell
Cook Inlet
US4AK4SF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 28
- S-57 layers
- 13
- Published
- Apr 1, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.60000° N
- South
- 60.30000° N
- West
- 153.00000° W
- East
- 152.40000° W
- Center
- 60.45000° N, 152.70000° W
- Bounds area
- 320 sq nm
- Feature density
- 0.0875 / sq nm
Chart Statistics
13 largest layers shown
- Average features per layer
- 2.2
- Smallest layer
- 1
- Largest layer
- 8
- Area sq km
- 1,098
- Features per sq km
- 0.02551
- ICEARE 8
- LNDELV 5
- RIVERS River 3
- COALNE Coastline 2
- SEAARE Sea area 2
- DEPARE Depth area 1
- LNDARE Land area 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- MAGVAR Magnetic variation 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/US4AK4SF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4SF/1.0/US4AK4SF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4SF/1.0/US4AK4SF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4SF/1.0/US4AK4SF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4SF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 1, 2024 | metadata.json |