NOAA S-57 chart cell
Near Islands, AK
US4AK1GN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,532
- S-57 layers
- 27
- Published
- Mar 7, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 53.10000° N
- South
- 52.80000° N
- West
- 172.20000° E
- East
- 172.80000° E
- Center
- 52.95000° N, 172.50000° E
- Bounds area
- 391 sq nm
- Feature density
- 3.9186 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 56.7
- Smallest layer
- 1
- Largest layer
- 518
- Area sq km
- 1,341
- Features per sq km
- 1.14248
- LNDARE Land area 518
- UWTROC Underwater rock 445
- COALNE Coastline 117
- DEPARE Depth area 93
- DEPCNT Depth contour 93
- SBDARE Seabed area 87
- SLOTOP 45
- WEDKLP 31
- LNDELV 27
- OBSTRN Obstruction 25
- RIVERS River 14
- LNDRGN Land region 8
- SEAARE Sea area 6
- SOUNDG Sounding 5
- LNDMRK 3
- MAGVAR Magnetic variation 3
- M_QUAL Data quality 2
- ADMARE 1
- CONZNE 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/US4AK1GN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK1GN/1.0/US4AK1GN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK1GN/1.0/US4AK1GN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK1GN/1.0/US4AK1GN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK1GN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 7, 2024 | metadata.json |