NOAA S-57 chart cell
Shumigan Islands
US4AK3LR
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 1,560
- S-57 layers
- 27
- Published
- Jun 2, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 55.20000° N
- South
- 54.90000° N
- West
- 161.40000° W
- East
- 160.80000° W
- Center
- 55.05000° N, 161.10000° W
- Bounds area
- 372 sq nm
- Feature density
- 4.1968 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 57.8
- Smallest layer
- 1
- Largest layer
- 618
- Area sq km
- 1,275
- Features per sq km
- 1.22358
- DEPCNT Depth contour 618
- DEPARE Depth area 609
- UWTROC Underwater rock 72
- COALNE Coastline 57
- SBDARE Seabed area 57
- LNDARE Land area 46
- WEDKLP 23
- M_QUAL Data quality 18
- RIVERS River 10
- SOUNDG Sounding 10
- OBSTRN Obstruction 9
- SLOTOP 7
- ADMARE 4
- LNDELV 3
- MAGVAR Magnetic variation 3
- LNDRGN Land region 2
- M_NPUB 2
- CONZNE 1
- COSARE 1
- EXEZNE 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/US4AK3LR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3LR/2.0/US4AK3LR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3LR/2.0/US4AK3LR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3LR/2.0/US4AK3LR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3LR/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Jun 2, 2026 | metadata.json |