NOAA S-57 chart cell
Deadman Bay, Olga Bay, and Kaiugnak Bay
US4AK4HD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 794
- S-57 layers
- 28
- Published
- Aug 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 154.20000° W
- East
- 153.60000° W
- Center
- 57.15000° N, 153.90000° W
- Bounds area
- 352 sq nm
- Feature density
- 2.2558 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 28.4
- Smallest layer
- 1
- Largest layer
- 150
- Area sq km
- 1,207
- Features per sq km
- 0.65769
- DEPARE Depth area 150
- DEPCNT Depth contour 140
- COALNE Coastline 136
- RIVERS River 95
- UWTROC Underwater rock 83
- SBDARE Seabed area 44
- LNDARE Land area 35
- LNDELV 28
- SEAARE Sea area 15
- LNDRGN Land region 12
- M_QUAL Data quality 11
- LAKARE 9
- SOUNDG Sounding 6
- PILPNT 5
- CTNARE Caution area 3
- LNDMRK 3
- SLOGRD 3
- WEDKLP 3
- MAGVAR Magnetic variation 2
- OBSTRN Obstruction 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/US4AK4HD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4HD/1.0/US4AK4HD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4HD/1.0/US4AK4HD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4HD/1.0/US4AK4HD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4HD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 1, 2025 | metadata.json |