NOAA S-57 chart cell
Bristol Bay and Ugashik Bay
US4AK3TX
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 71
- S-57 layers
- 13
- Published
- Dec 12, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 157.80000° W
- East
- 157.20000° W
- Center
- 57.45000° N, 157.50000° W
- Bounds area
- 349 sq nm
- Feature density
- 0.2034 / sq nm
Chart Statistics
13 largest layers shown
- Average features per layer
- 5.5
- Smallest layer
- 1
- Largest layer
- 15
- Area sq km
- 1,197
- Features per sq km
- 0.05929
- DEPARE Depth area 15
- DEPCNT Depth contour 15
- COALNE Coastline 10
- LNDARE Land area 9
- RIVERS River 9
- SEAARE Sea area 4
- LNDRGN Land region 2
- MAGVAR Magnetic variation 2
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- SLOTOP 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/US4AK3TX.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3TX/1.0/US4AK3TX.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3TX/1.0/US4AK3TX.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3TX/1.0/US4AK3TX.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3TX/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 12, 2023 | metadata.json |