NOAA S-57 chart cell
Andreanof Islands, AK
US4AK2EN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 193
- S-57 layers
- 22
- Published
- Feb 12, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.50000° N
- South
- 52.20000° N
- West
- 172.80000° W
- East
- 172.20000° W
- Center
- 52.35000° N, 172.50000° W
- Bounds area
- 396 sq nm
- Feature density
- 0.4869 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.8
- Smallest layer
- 1
- Largest layer
- 36
- Area sq km
- 1,359
- Features per sq km
- 0.14197
- LNDARE Land area 36
- UWTROC Underwater rock 27
- DEPCNT Depth contour 24
- DEPARE Depth area 23
- COALNE Coastline 21
- SBDARE Seabed area 11
- LNDELV 9
- LNDRGN Land region 7
- OBSTRN Obstruction 6
- SLOGRD 6
- WEDKLP 6
- SEAARE Sea area 3
- SOUNDG Sounding 3
- MAGVAR Magnetic variation 2
- RESARE 2
- LNDMRK 1
- LOCMAG 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 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/US4AK2EN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK2EN/1.0/US4AK2EN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK2EN/1.0/US4AK2EN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK2EN/1.0/US4AK2EN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK2EN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 12, 2024 | metadata.json |