NOAA S-57 chart cell
Bristol Bay - South
US4AK3QT
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 31
- S-57 layers
- 21
- Published
- Oct 12, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.70000° N
- South
- 56.40000° N
- West
- 160.20000° W
- East
- 159.60000° W
- Center
- 56.55000° N, 159.90000° W
- Bounds area
- 358 sq nm
- Feature density
- 0.0867 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 1.5
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 1,227
- Features per sq km
- 0.02527
- RIVERS River 7
- DEPARE Depth area 2
- M_NPUB 2
- M_QUAL Data quality 2
- SOUNDG Sounding 2
- ADMARE 1
- COALNE Coastline 1
- CONZNE 1
- CTNARE Caution area 1
- DEPCNT Depth contour 1
- EXEZNE 1
- LAKARE 1
- LNDARE Land area 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- OBSTRN Obstruction 1
- SBDARE Seabed area 1
- SEAARE Sea area 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/US4AK3QT.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3QT/1.0/US4AK3QT.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3QT/1.0/US4AK3QT.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3QT/1.0/US4AK3QT.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3QT/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Oct 12, 2023 | metadata.json |