NOAA S-57 chart cell
Uyak Bay, AK
US4AK4ID
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,293
- S-57 layers
- 34
- Published
- Aug 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 154.20000° W
- East
- 153.60000° W
- Center
- 57.45000° N, 153.90000° W
- Bounds area
- 349 sq nm
- Feature density
- 3.7036 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 38
- Smallest layer
- 1
- Largest layer
- 241
- Area sq km
- 1,197
- Features per sq km
- 1.0798
- DEPCNT Depth contour 241
- DEPARE Depth area 228
- COALNE Coastline 182
- SBDARE Seabed area 181
- UWTROC Underwater rock 162
- RIVERS River 75
- LNDARE Land area 71
- LNDELV 29
- BUISGL 19
- OBSTRN Obstruction 12
- PILPNT 11
- SLCONS Shoreline construction 11
- SLOTOP 11
- M_QUAL Data quality 7
- DAYMAR 6
- SEAARE Sea area 5
- ACHARE Anchorage area 4
- BCNLAT Lateral beacon 4
- LIGHTS Light 4
- WRECKS Wreck 4
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/US4AK4ID.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4ID/1.0/US4AK4ID.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4ID/1.0/US4AK4ID.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4ID/1.0/US4AK4ID.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4ID/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 1, 2025 | metadata.json |