NOAA S-57 chart cell
Near Islands, AK
US4AK1FQ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 501
- S-57 layers
- 28
- Published
- Mar 7, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.80000° N
- South
- 52.50000° N
- West
- 174.00000° E
- East
- 174.60000° E
- Center
- 52.65000° N, 174.30000° E
- Bounds area
- 394 sq nm
- Feature density
- 1.2727 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 17.9
- Smallest layer
- 1
- Largest layer
- 120
- Area sq km
- 1,350
- Features per sq km
- 0.37105
- UWTROC Underwater rock 120
- DEPCNT Depth contour 109
- DEPARE Depth area 103
- SBDARE Seabed area 57
- LNDARE Land area 26
- COALNE Coastline 20
- OBSTRN Obstruction 19
- LNDELV 5
- LNDRGN Land region 4
- M_QUAL Data quality 4
- SEAARE Sea area 4
- SOUNDG Sounding 4
- WATTUR 4
- DMPGRD 3
- MAGVAR Magnetic variation 3
- CONZNE 2
- EXEZNE 2
- WRECKS Wreck 2
- ADMARE 1
- CTNARE Caution area 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/US4AK1FQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK1FQ/1.0/US4AK1FQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK1FQ/1.0/US4AK1FQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK1FQ/1.0/US4AK1FQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK1FQ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 7, 2024 | metadata.json |