NOAA S-57 chart cell
Cook Inlet
US4AK4RH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 351
- S-57 layers
- 29
- Published
- Apr 1, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.30000° N
- South
- 60.00000° N
- West
- 151.80000° W
- East
- 151.20000° W
- Center
- 60.15000° N, 151.50000° W
- Bounds area
- 323 sq nm
- Feature density
- 1.0868 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 12.1
- Smallest layer
- 1
- Largest layer
- 203
- Area sq km
- 1,108
- Features per sq km
- 0.31686
- UWTROC Underwater rock 203
- DEPCNT Depth contour 36
- DEPARE Depth area 31
- SBDARE Seabed area 20
- OBSTRN Obstruction 12
- COALNE Coastline 8
- RIVERS River 8
- LNDRGN Land region 4
- LIGHTS Light 3
- LNDARE Land area 2
- LNDELV 2
- LNDMRK 2
- M_QUAL Data quality 2
- SOUNDG Sounding 2
- WRECKS Wreck 2
- ADMARE 1
- BCNSPP Special purpose beacon 1
- BUAARE 1
- CBLSUB 1
- CTNARE Caution area 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/US4AK4RH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4RH/1.0/US4AK4RH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4RH/1.0/US4AK4RH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4RH/1.0/US4AK4RH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4RH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 1, 2024 | metadata.json |