NOAA S-57 chart cell
Norton Sound, Alaska
US4AK6NV
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 50
- S-57 layers
- 17
- Published
- Sep 5, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 63.60000° N
- South
- 63.30000° N
- West
- 161.40000° W
- East
- 160.80000° W
- Center
- 63.45000° N, 161.10000° W
- Bounds area
- 290 sq nm
- Feature density
- 0.1724 / sq nm
Chart Statistics
17 largest layers shown
- Average features per layer
- 2.9
- Smallest layer
- 1
- Largest layer
- 8
- Area sq km
- 995
- Features per sq km
- 0.05026
- DEPARE Depth area 8
- RIVERS River 8
- LNDARE Land area 5
- COALNE Coastline 4
- DEPCNT Depth contour 4
- M_QUAL Data quality 3
- SBDARE Seabed area 3
- SOUNDG Sounding 3
- M_NPUB 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- ADMARE 1
- BUAARE 1
- LNDELV 1
- LNDRGN Land region 1
- M_COVR Coverage 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/US4AK6NV.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6NV/1.1/US4AK6NV.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6NV/1.1/US4AK6NV.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6NV/1.1/US4AK6NV.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6NV/1.1/US4AK6NV.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6NV/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Sep 5, 2025 | metadata.json |