NOAA S-57 chart cell
Alaska
US4AK7KH
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 133
- S-57 layers
- 19
- Published
- May 27, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 70.50000° N
- South
- 70.20000° N
- West
- 160.80000° W
- East
- 159.60000° W
- Center
- 70.35000° N, 160.20000° W
- Bounds area
- 436 sq nm
- Feature density
- 0.3048 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 7
- Smallest layer
- 1
- Largest layer
- 32
- Area sq km
- 1,497
- Features per sq km
- 0.08886
- COALNE Coastline 32
- LNDARE Land area 20
- DEPARE Depth area 16
- RIVERS River 15
- DEPCNT Depth contour 14
- M_QUAL Data quality 6
- LAKARE 5
- LNDRGN Land region 5
- MAGVAR Magnetic variation 4
- UNSARE 4
- CTNARE Caution area 3
- SEAARE Sea area 2
- BUAARE 1
- CTRPNT 1
- LNDMRK 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- SOUNDG Sounding 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/US4AK7KH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7KH/3.0/US4AK7KH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7KH/3.0/US4AK7KH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7KH/3.0/US4AK7KH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7KH/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | May 27, 2026 | metadata.json |