NOAA S-57 chart cell
Bristol Bay
US4AK3OQ
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 37
- S-57 layers
- 19
- Published
- Oct 31, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.10000° N
- South
- 55.80000° N
- West
- 162.00000° W
- East
- 161.40000° W
- Center
- 55.95000° N, 161.70000° W
- Bounds area
- 363 sq nm
- Feature density
- 0.1018 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 1.9
- Smallest layer
- 1
- Largest layer
- 4
- Area sq km
- 1,246
- Features per sq km
- 0.02969
- COALNE Coastline 4
- DEPARE Depth area 4
- LNDARE Land area 3
- M_NPUB 3
- M_QUAL Data quality 3
- RIVERS River 3
- SEAARE Sea area 3
- CTNARE Caution area 2
- DEPCNT Depth contour 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SOUNDG Sounding 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/US4AK3OQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3OQ/2.0/US4AK3OQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3OQ/2.0/US4AK3OQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3OQ/2.0/US4AK3OQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3OQ/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Oct 31, 2024 | metadata.json |