NOAA S-57 chart cell
Aniakchak Bay and Amber Bay
US4AK3RX
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 394
- S-57 layers
- 20
- Published
- Apr 10, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.00000° N
- South
- 56.70000° N
- West
- 157.80000° W
- East
- 157.20000° W
- Center
- 56.85000° N, 157.50000° W
- Bounds area
- 355 sq nm
- Feature density
- 1.1104 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19.7
- Smallest layer
- 1
- Largest layer
- 111
- Area sq km
- 1,217
- Features per sq km
- 0.32374
- DEPCNT Depth contour 111
- DEPARE Depth area 99
- SBDARE Seabed area 62
- UWTROC Underwater rock 51
- LNDARE Land area 11
- RIVERS River 10
- COALNE Coastline 9
- OBSTRN Obstruction 9
- M_QUAL Data quality 7
- SLOGRD 5
- LNDRGN Land region 4
- SEAARE Sea area 3
- SOUNDG Sounding 3
- WEDKLP 3
- M_NPUB 2
- ADMARE 1
- LNDMRK 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 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/US4AK3RX.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3RX/1.0/US4AK3RX.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3RX/1.0/US4AK3RX.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3RX/1.0/US4AK3RX.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3RX/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 10, 2024 | metadata.json |