NOAA S-57 chart cell
Cook Inlet
US4AK4QH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 187
- S-57 layers
- 24
- Published
- Apr 1, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.00000° N
- South
- 59.70000° N
- West
- 151.80000° W
- East
- 151.20000° W
- Center
- 59.85000° N, 151.50000° W
- Bounds area
- 326 sq nm
- Feature density
- 0.5738 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 7.8
- Smallest layer
- 1
- Largest layer
- 63
- Area sq km
- 1,118
- Features per sq km
- 0.16729
- UWTROC Underwater rock 63
- SLOTOP 22
- RIVERS River 15
- COALNE Coastline 14
- DEPARE Depth area 12
- DEPCNT Depth contour 9
- LNDELV 8
- LNDRGN Land region 6
- SEAARE Sea area 5
- SLOGRD 5
- CTNARE Caution area 4
- M_QUAL Data quality 4
- SBDARE Seabed area 4
- SOUNDG Sounding 3
- LNDARE Land area 2
- MAGVAR Magnetic variation 2
- VEGATN 2
- LIGHTS Light 1
- LNDMRK 1
- M_COVR Coverage 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/US4AK4QH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4QH/1.0/US4AK4QH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4QH/1.0/US4AK4QH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4QH/1.0/US4AK4QH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4QH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 1, 2024 | metadata.json |