NOAA S-57 chart cell
Alaska
US4AK7KP
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 621
- S-57 layers
- 28
- Published
- Jun 16, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 70.50000° N
- South
- 70.20000° N
- West
- 151.20000° W
- East
- 150.00000° W
- Center
- 70.35000° N, 150.60000° W
- Bounds area
- 436 sq nm
- Feature density
- 1.423 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 22.2
- Smallest layer
- 1
- Largest layer
- 201
- Area sq km
- 1,497
- Features per sq km
- 0.41488
- COALNE Coastline 201
- LAKARE 175
- LNDARE Land area 65
- LNDRGN Land region 55
- SEAARE Sea area 29
- RIVERS River 20
- M_QUAL Data quality 14
- DEPARE Depth area 13
- CTNARE Caution area 8
- SBDARE Seabed area 7
- DEPCNT Depth contour 4
- LIGHTS Light 4
- OBSTRN Obstruction 4
- SOUNDG Sounding 3
- ADMARE 2
- AIRARE 2
- LNDMRK 2
- SLCONS Shoreline construction 2
- UNSARE 2
- CBLARE 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/US4AK7KP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7KP/3.0/US4AK7KP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7KP/3.0/US4AK7KP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7KP/3.0/US4AK7KP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7KP/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Jun 16, 2026 | metadata.json |