NOAA S-57 chart cell
Andreanof Islands, AK
US4AK2EH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 62
- S-57 layers
- 15
- Published
- Aug 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.50000° N
- South
- 52.20000° N
- West
- 175.80000° W
- East
- 175.20000° W
- Center
- 52.35000° N, 175.50000° W
- Bounds area
- 396 sq nm
- Feature density
- 0.1564 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 4.1
- Smallest layer
- 1
- Largest layer
- 20
- Area sq km
- 1,359
- Features per sq km
- 0.04561
- DEPCNT Depth contour 20
- DEPARE Depth area 18
- SOUNDG Sounding 7
- M_QUAL Data quality 5
- ADMARE 2
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SBDARE Seabed area 1
- SEAARE Sea area 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/US4AK2EH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK2EH/1.0/US4AK2EH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK2EH/1.0/US4AK2EH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK2EH/1.0/US4AK2EH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK2EH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 14, 2025 | metadata.json |