NOAA S-57 chart cell
Walker Cove and Rudyerd Bay, AK
US4AK5IQ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 392
- S-57 layers
- 20
- Published
- Nov 19, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 55.80000° N
- South
- 55.50000° N
- West
- 130.80000° W
- East
- 130.22000° W
- Center
- 55.65000° N, 130.51000° W
- Bounds area
- 354 sq nm
- Feature density
- 1.1076 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19.6
- Smallest layer
- 1
- Largest layer
- 79
- Area sq km
- 1,214
- Features per sq km
- 0.32292
- RIVERS River 79
- COALNE Coastline 67
- UWTROC Underwater rock 59
- DEPARE Depth area 54
- DEPCNT Depth contour 54
- LNDELV 17
- LNDARE Land area 16
- SBDARE Seabed area 15
- SLOTOP 7
- M_QUAL Data quality 5
- SOUNDG Sounding 4
- SEAARE Sea area 3
- LAKARE 2
- MAGVAR Magnetic variation 2
- MORFAC 2
- SLOGRD 2
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 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/US4AK5IQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5IQ/1.0/US4AK5IQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5IQ/1.0/US4AK5IQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5IQ/1.0/US4AK5IQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5IQ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 19, 2024 | metadata.json |