NOAA S-57 chart cell
Alaska
US4AK7JV
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 832
- S-57 layers
- 31
- Published
- May 21, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 70.20000° N
- South
- 69.90000° N
- West
- 144.00000° W
- East
- 142.80000° W
- Center
- 70.05000° N, 143.40000° W
- Bounds area
- 443 sq nm
- Feature density
- 1.879 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 26.8
- Smallest layer
- 1
- Largest layer
- 186
- Area sq km
- 1,519
- Features per sq km
- 0.54782
- LAKARE 186
- COALNE Coastline 136
- LNDRGN Land region 101
- DEPCNT Depth contour 78
- RIVERS River 67
- DEPARE Depth area 63
- SBDARE Seabed area 51
- LNDARE Land area 37
- SLOTOP 27
- SEAARE Sea area 12
- OBSTRN Obstruction 9
- CTNARE Caution area 8
- LNDMRK 7
- M_QUAL Data quality 7
- SILTNK 7
- SLCONS Shoreline construction 6
- BUISGL 5
- SLOGRD 5
- SOUNDG Sounding 5
- ADMARE 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/US4AK7JV.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7JV/3.0/US4AK7JV.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7JV/3.0/US4AK7JV.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7JV/3.0/US4AK7JV.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7JV/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | May 21, 2026 | metadata.json |