NOAA S-57 chart cell
Alaska
US4AK7LI
- Usage band
- Approach · code 4
- Current edition
- 4.0
- Features
- 262
- S-57 layers
- 19
- Published
- May 27, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 70.80000° N
- South
- 70.50000° N
- West
- 159.60000° W
- East
- 158.40000° W
- Center
- 70.65000° N, 159.00000° W
- Bounds area
- 430 sq nm
- Feature density
- 0.6093 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 13.8
- Smallest layer
- 1
- Largest layer
- 79
- Area sq km
- 1,475
- Features per sq km
- 0.17765
- LAKARE 79
- COALNE Coastline 46
- SLOTOP 34
- RIVERS River 29
- LNDRGN Land region 12
- DEPARE Depth area 11
- OBSTRN Obstruction 11
- LNDARE Land area 10
- DEPCNT Depth contour 8
- M_QUAL Data quality 6
- SBDARE Seabed area 5
- SEAARE Sea area 3
- MAGVAR Magnetic variation 2
- CTNARE Caution area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- SOUNDG Sounding 1
- UNSARE 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/US4AK7LI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK7LI/4.0/US4AK7LI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7LI/4.0/US4AK7LI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7LI/4.0/US4AK7LI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7LI/4.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 4.0 | May 27, 2026 | metadata.json |