NOAA S-57 chart cell
St. George Island
US4AK3QD
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 467
- S-57 layers
- 41
- Published
- Apr 21, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.70000° N
- South
- 56.40000° N
- West
- 169.80000° W
- East
- 169.20000° W
- Center
- 56.55000° N, 169.50000° W
- Bounds area
- 358 sq nm
- Feature density
- 1.3057 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 11.4
- Smallest layer
- 1
- Largest layer
- 98
- Area sq km
- 1,227
- Features per sq km
- 0.38068
- WEDKLP 98
- DEPCNT Depth contour 74
- DEPARE Depth area 61
- LNDARE Land area 45
- COALNE Coastline 29
- SBDARE Seabed area 26
- BUISGL 14
- M_QUAL Data quality 14
- LNDELV 13
- LNDRGN Land region 13
- RIVERS River 11
- SOUNDG Sounding 9
- UWTROC Underwater rock 8
- SLCONS Shoreline construction 6
- SEAARE Sea area 5
- MAGVAR Magnetic variation 4
- UNSARE 4
- DAYMAR 3
- LIGHTS Light 3
- SLOTOP 3
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/US4AK3QD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3QD/2.0/US4AK3QD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3QD/2.0/US4AK3QD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3QD/2.0/US4AK3QD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3QD/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 21, 2026 | metadata.json |