NOAA S-57 chart cell
Nunivak Island, Alaska
US4AK6CL
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 90
- S-57 layers
- 23
- Published
- May 19, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.30000° N
- South
- 60.00000° N
- West
- 167.40000° W
- East
- 166.80000° W
- Center
- 60.15000° N, 167.10000° W
- Bounds area
- 323 sq nm
- Feature density
- 0.2787 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 3.9
- Smallest layer
- 1
- Largest layer
- 13
- Area sq km
- 1,108
- Features per sq km
- 0.08125
- RIVERS River 13
- M_QUAL Data quality 12
- DEPARE Depth area 10
- DEPCNT Depth contour 6
- LNDRGN Land region 6
- SBDARE Seabed area 6
- SLOGRD 6
- BUISGL 3
- M_NPUB 3
- OBSTRN Obstruction 3
- SEAARE Sea area 3
- UWTROC Underwater rock 3
- ADMARE 2
- COALNE Coastline 2
- LNDELV 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- BUAARE 1
- LNDARE Land area 1
- LNDMRK 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/US4AK6CL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6CL/2.0/US4AK6CL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6CL/2.0/US4AK6CL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6CL/2.0/US4AK6CL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6CL/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | May 19, 2025 | metadata.json |