NOAA S-57 chart cell
Icy Strait and Port Frederick, AK
US4AK5QI
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 1,158
- S-57 layers
- 42
- Published
- Jun 11, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.20000° N
- South
- 57.90000° N
- West
- 135.60000° W
- East
- 135.00000° W
- Center
- 58.05000° N, 135.30000° W
- Bounds area
- 343 sq nm
- Feature density
- 3.3724 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 27.6
- Smallest layer
- 1
- Largest layer
- 209
- Area sq km
- 1,178
- Features per sq km
- 0.98325
- UWTROC Underwater rock 209
- DEPCNT Depth contour 170
- DEPARE Depth area 162
- COALNE Coastline 145
- SBDARE Seabed area 113
- RIVERS River 74
- LNDARE Land area 59
- SLCONS Shoreline construction 32
- WEDKLP 30
- LNDELV 22
- LNDRGN Land region 14
- OBSTRN Obstruction 12
- SEAARE Sea area 12
- PONTON 11
- SLOGRD 11
- LIGHTS Light 10
- MORFAC 10
- M_QUAL Data quality 9
- BUISGL 7
- DAYMAR 6
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/US4AK5QI.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/US4AK5QI.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/US4AK5QI.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/US4AK5QI.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/US4AK5QI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/US4AK5QI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5QI/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Jun 11, 2026 | metadata.json |