NOAA S-57 chart cell
Alaska
US4AK6QO
- Usage band
- Approach · code 4
- Current edition
- 1.3
- Features
- 302
- S-57 layers
- 35
- Published
- Mar 12, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 64.50000° N
- South
- 64.20000° N
- West
- 165.60000° W
- East
- 165.00000° W
- Center
- 64.35000° N, 165.30000° W
- Bounds area
- 281 sq nm
- Feature density
- 1.0752 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.6
- Smallest layer
- 1
- Largest layer
- 44
- Area sq km
- 963
- Features per sq km
- 0.31348
- BUISGL 44
- COALNE Coastline 43
- DEPARE Depth area 29
- M_QUAL Data quality 25
- SLCONS Shoreline construction 24
- DEPCNT Depth contour 22
- LNDARE Land area 20
- RIVERS River 20
- LNDMRK 11
- SBDARE Seabed area 11
- SOUNDG Sounding 10
- SLOTOP 8
- M_NPUB 5
- BCNLAT Lateral beacon 2
- DMPGRD 2
- FAIRWY Fairway 2
- LIGHTS Light 2
- LNDRGN Land region 2
- MAGVAR Magnetic variation 2
- OBSTRN Obstruction 2
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/US4AK6QO.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.002
- S-57 update 003 https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.003
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/US4AK6QO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6QO/1.3/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.3 | Mar 12, 2026 | metadata.json |