NOAA S-57 chart cell
Idaho Inlet, Tenakee Inlet, and Port Frederick, AK
US4AK5QH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 867
- S-57 layers
- 25
- Published
- Nov 29, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.20000° N
- South
- 57.90000° N
- West
- 136.20000° W
- East
- 135.60000° W
- Center
- 58.05000° N, 135.90000° W
- Bounds area
- 343 sq nm
- Feature density
- 2.525 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 34.7
- Smallest layer
- 1
- Largest layer
- 191
- Area sq km
- 1,178
- Features per sq km
- 0.73616
- DEPCNT Depth contour 191
- DEPARE Depth area 157
- COALNE Coastline 130
- UWTROC Underwater rock 96
- LNDARE Land area 83
- RIVERS River 78
- SBDARE Seabed area 50
- SEAARE Sea area 13
- M_QUAL Data quality 12
- LNDELV 11
- OBSTRN Obstruction 9
- SOUNDG Sounding 8
- LNDRGN Land region 5
- MAGVAR Magnetic variation 5
- MORFAC 4
- SLCONS Shoreline construction 4
- BUISGL 2
- CTNARE Caution area 2
- LAKARE 1
- LNDMRK 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/US4AK5QH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5QH/1.0/US4AK5QH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5QH/1.0/US4AK5QH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5QH/1.0/US4AK5QH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5QH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 29, 2024 | metadata.json |