NOAA S-57 chart cell
Bristol Bay
US4AK3PR
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 37
- S-57 layers
- 15
- Published
- Jun 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.40000° N
- South
- 56.10000° N
- West
- 161.40000° W
- East
- 160.80000° W
- Center
- 56.25000° N, 161.10000° W
- Bounds area
- 360 sq nm
- Feature density
- 0.1026 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 2.5
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 1,236
- Features per sq km
- 0.02992
- M_QUAL Data quality 7
- SBDARE Seabed area 6
- DEPARE Depth area 5
- SOUNDG Sounding 5
- DEPCNT Depth contour 3
- M_NPUB 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SEAARE Sea area 1
- TESARE 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/US4AK3PR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3PR/2.0/US4AK3PR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3PR/2.0/US4AK3PR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3PR/2.0/US4AK3PR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3PR/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 9, 2026 | metadata.json |