NOAA S-57 chart cell
Alaska
US4AK6SL
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 49
- S-57 layers
- 18
- Published
- Apr 28, 2021
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 65.10000° N
- South
- 64.80000° N
- West
- 167.40000° W
- East
- 166.80000° W
- Center
- 64.95000° N, 167.10000° W
- Bounds area
- 275 sq nm
- Feature density
- 0.1784 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 2.7
- Smallest layer
- 1
- Largest layer
- 9
- Area sq km
- 942
- Features per sq km
- 0.052
- DEPARE Depth area 9
- M_QUAL Data quality 9
- DEPCNT Depth contour 7
- SOUNDG Sounding 7
- LAKARE 3
- COALNE Coastline 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- LNDARE Land area 1
- LNDRGN Land region 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- OBSTRN Obstruction 1
- SEAARE Sea area 1
- UNSARE 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/US4AK6SL.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6SL/1.1/US4AK6SL.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6SL/1.1/US4AK6SL.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6SL/1.1/US4AK6SL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6SL/1.1/US4AK6SL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6SL/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Apr 28, 2021 | metadata.json |