NOAA S-57 chart cell
Alaska
US4AK7IE
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 35
- S-57 layers
- 14
- Published
- May 22, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 69.90000° N
- South
- 69.60000° N
- West
- 164.40000° W
- East
- 163.20000° W
- Center
- 69.75000° N, 163.80000° W
- Bounds area
- 449 sq nm
- Feature density
- 0.0779 / sq nm
Chart Statistics
14 largest layers shown
- Average features per layer
- 2.5
- Smallest layer
- 1
- Largest layer
- 6
- Area sq km
- 1,541
- Features per sq km
- 0.02272
- DEPARE Depth area 6
- DEPCNT Depth contour 5
- SBDARE Seabed area 5
- SOUNDG Sounding 4
- M_QUAL Data quality 3
- M_NPUB 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 1
- TESARE 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/US4AK7IE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7IE/3.0/US4AK7IE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7IE/3.0/US4AK7IE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7IE/3.0/US4AK7IE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7IE/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | May 22, 2026 | metadata.json |