NOAA S-57 chart cell
Andreanof Islands, AK
US4AK2DG
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 4,551
- S-57 layers
- 28
- Published
- Aug 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.20000° N
- South
- 51.90000° N
- West
- 176.40000° W
- East
- 175.80000° W
- Center
- 52.05000° N, 176.10000° W
- Bounds area
- 399 sq nm
- Feature density
- 11.4048 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 162.5
- Smallest layer
- 1
- Largest layer
- 1,342
- Area sq km
- 1,369
- Features per sq km
- 3.32512
- COALNE Coastline 1,342
- LNDARE Land area 1,325
- UWTROC Underwater rock 377
- SBDARE Seabed area 348
- WEDKLP 314
- DEPCNT Depth contour 313
- DEPARE Depth area 278
- RIVERS River 49
- SLOTOP 48
- LNDRGN Land region 36
- OBSTRN Obstruction 22
- BUISGL 21
- SEAARE Sea area 16
- LNDELV 13
- WATTUR 12
- SOUNDG Sounding 9
- MAGVAR Magnetic variation 7
- SLCONS Shoreline construction 6
- M_QUAL Data quality 4
- CTNARE Caution area 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/US4AK2DG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK2DG/1.0/US4AK2DG.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK2DG/1.0/US4AK2DG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK2DG/1.0/US4AK2DG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK2DG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 14, 2025 | metadata.json |