NOAA S-57 chart cell
Cook Inlet - Approaches to Anchorage
US4AK4UJ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 977
- S-57 layers
- 40
- Published
- Apr 21, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 61.20000° N
- South
- 60.90000° N
- West
- 150.60000° W
- East
- 150.00000° W
- Center
- 61.05000° N, 150.30000° W
- Bounds area
- 314 sq nm
- Feature density
- 3.1106 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 24.4
- Smallest layer
- 1
- Largest layer
- 222
- Area sq km
- 1,077
- Features per sq km
- 0.90691
- DEPCNT Depth contour 222
- UWTROC Underwater rock 212
- DEPARE Depth area 197
- SBDARE Seabed area 115
- LNDARE Land area 35
- M_QUAL Data quality 32
- COALNE Coastline 22
- OBSTRN Obstruction 18
- SOUNDG Sounding 14
- LNDELV 13
- LNDRGN Land region 13
- CTNARE Caution area 11
- RIVERS River 11
- SEAARE Sea area 9
- BUISGL 6
- LIGHTS Light 5
- BCNSPP Special purpose beacon 4
- DAYMAR 4
- AIRARE 3
- CBLSUB 3
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/US4AK4UJ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4UJ/1.0/US4AK4UJ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4UJ/1.0/US4AK4UJ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4UJ/1.0/US4AK4UJ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4UJ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 21, 2025 | metadata.json |