NOAA S-57 chart cell
Near Islands, AK
US4AK1GP
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 163
- S-57 layers
- 26
- Published
- Mar 7, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 53.10000° N
- South
- 52.80000° N
- West
- 173.40000° E
- East
- 174.00000° E
- Center
- 52.95000° N, 173.70000° E
- Bounds area
- 391 sq nm
- Feature density
- 0.4169 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 6.3
- Smallest layer
- 1
- Largest layer
- 46
- Area sq km
- 1,341
- Features per sq km
- 0.12156
- DEPARE Depth area 46
- DEPCNT Depth contour 43
- LNDARE Land area 10
- SBDARE Seabed area 10
- UWTROC Underwater rock 9
- SOUNDG Sounding 6
- COALNE Coastline 5
- LNDELV 4
- OBSTRN Obstruction 4
- LNDRGN Land region 3
- M_QUAL Data quality 3
- SEAARE Sea area 3
- ADMARE 2
- LNDMRK 2
- RIVERS River 2
- CONZNE 1
- CTNARE Caution area 1
- DMPGRD 1
- EXEZNE 1
- M_COVR Coverage 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/US4AK1GP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK1GP/1.0/US4AK1GP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK1GP/1.0/US4AK1GP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK1GP/1.0/US4AK1GP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK1GP/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 7, 2024 | metadata.json |