NOAA S-57 chart cell
Andreanof Islands, AK
US4AK2CG
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 3,624
- S-57 layers
- 30
- Published
- Aug 15, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 51.90000° N
- South
- 51.60000° N
- West
- 176.40000° W
- East
- 175.80000° W
- Center
- 51.75000° N, 176.10000° W
- Bounds area
- 402 sq nm
- Feature density
- 9.0213 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 120.8
- Smallest layer
- 1
- Largest layer
- 1,174
- Area sq km
- 1,378
- Features per sq km
- 2.6302
- LNDARE Land area 1,174
- COALNE Coastline 957
- DEPCNT Depth contour 327
- DEPARE Depth area 290
- SBDARE Seabed area 242
- UWTROC Underwater rock 233
- WEDKLP 147
- RIVERS River 42
- SLOTOP 36
- OBSTRN Obstruction 33
- WATTUR 28
- SEAARE Sea area 25
- LNDELV 20
- LNDRGN Land region 17
- SOUNDG Sounding 12
- M_QUAL Data quality 10
- SLCONS Shoreline construction 10
- CTNARE Caution area 4
- MAGVAR Magnetic variation 4
- M_NPUB 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/US4AK2CG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK2CG/1.0/US4AK2CG.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK2CG/1.0/US4AK2CG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK2CG/1.0/US4AK2CG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK2CG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 15, 2025 | metadata.json |