NOAA S-57 chart cell
Nunivak Island, Alaska
US4AK6CM
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 38
- S-57 layers
- 15
- Published
- May 13, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 60.30000° N
- South
- 60.00000° N
- West
- 166.80000° W
- East
- 166.20000° W
- Center
- 60.15000° N, 166.50000° W
- Bounds area
- 323 sq nm
- Feature density
- 0.1177 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 2.5
- Smallest layer
- 1
- Largest layer
- 6
- Area sq km
- 1,108
- Features per sq km
- 0.0343
- M_QUAL Data quality 6
- RIVERS River 6
- DEPARE Depth area 5
- M_NPUB 4
- SEAARE Sea area 4
- COALNE Coastline 3
- DEPCNT Depth contour 2
- LNDARE Land area 1
- LNDELV 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 1
- SLOGRD 1
- SOUNDG Sounding 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/US4AK6CM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6CM/1.1/US4AK6CM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6CM/1.1/US4AK6CM.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6CM/1.1/US4AK6CM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6CM/1.1/US4AK6CM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6CM/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | May 13, 2025 | metadata.json |