NOAA S-57 chart cell
Alaska
US4AK7FD
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 105
- S-57 layers
- 19
- Published
- May 13, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 69.00000° N
- South
- 68.70000° N
- West
- 165.60000° W
- East
- 164.40000° W
- Center
- 68.85000° N, 165.00000° W
- Bounds area
- 468 sq nm
- Feature density
- 0.2242 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 5.5
- Smallest layer
- 1
- Largest layer
- 34
- Area sq km
- 1,606
- Features per sq km
- 0.06538
- LNDELV 34
- RIVERS River 20
- COALNE Coastline 12
- LNDRGN Land region 12
- LAKARE 5
- DEPARE Depth area 3
- EXEZNE 2
- LNDARE Land area 2
- LNDMRK 2
- M_NPUB 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- DEPCNT Depth contour 1
- M_COVR Coverage 1
- M_NSYS 1
- M_QUAL Data quality 1
- PRDARE 1
- SEAARE Sea area 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/US4AK7FD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7FD/3.0/US4AK7FD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7FD/3.0/US4AK7FD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7FD/3.0/US4AK7FD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7FD/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | May 13, 2026 | metadata.json |