NOAA S-57 chart cell
Shelikof Strait to Paramanof Bay and Foul Bay; Shuyak Strait to Perenosa Bay
US4AK4LF
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 3,357
- S-57 layers
- 32
- Published
- Jul 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.50000° N
- South
- 58.20000° N
- West
- 153.00000° W
- East
- 152.40000° W
- Center
- 58.35000° N, 152.70000° W
- Bounds area
- 340 sq nm
- Feature density
- 9.8595 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 104.9
- Smallest layer
- 1
- Largest layer
- 874
- Area sq km
- 1,168
- Features per sq km
- 2.87457
- UWTROC Underwater rock 874
- DEPCNT Depth contour 689
- DEPARE Depth area 678
- SBDARE Seabed area 364
- LNDARE Land area 348
- OBSTRN Obstruction 109
- COALNE Coastline 70
- WEDKLP 66
- RIVERS River 40
- LNDELV 37
- SEAARE Sea area 22
- M_QUAL Data quality 10
- SLOGRD 8
- LNDRGN Land region 7
- SOUNDG Sounding 6
- WATTUR 4
- MAGVAR Magnetic variation 3
- BUISGL 2
- DAYMAR 2
- LAKARE 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/US4AK4LF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4LF/1.0/US4AK4LF.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4LF/1.0/US4AK4LF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4LF/1.0/US4AK4LF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4LF/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jul 1, 2025 | metadata.json |