NOAA S-57 chart cell
Chiginagak Bay
US4AK3SY
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 170
- S-57 layers
- 19
- Published
- Apr 10, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 157.20000° W
- East
- 156.60000° W
- Center
- 57.15000° N, 156.90000° W
- Bounds area
- 352 sq nm
- Feature density
- 0.483 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 8.9
- Smallest layer
- 1
- Largest layer
- 29
- Area sq km
- 1,207
- Features per sq km
- 0.14082
- DEPCNT Depth contour 29
- DEPARE Depth area 27
- UWTROC Underwater rock 26
- RIVERS River 22
- SBDARE Seabed area 16
- LNDARE Land area 10
- COALNE Coastline 9
- LNDELV 9
- SEAARE Sea area 5
- LNDRGN Land region 3
- M_QUAL Data quality 3
- CTNARE Caution area 2
- OBSTRN Obstruction 2
- WEDKLP 2
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SOUNDG Sounding 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/US4AK3SY.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3SY/1.0/US4AK3SY.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3SY/1.0/US4AK3SY.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3SY/1.0/US4AK3SY.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3SY/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 10, 2024 | metadata.json |