NOAA S-57 chart cell
Alaska
US4AK6TL
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 230
- S-57 layers
- 24
- Published
- Apr 28, 2021
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 65.40000° N
- South
- 65.10000° N
- West
- 167.40000° W
- East
- 166.80000° W
- Center
- 65.25000° N, 167.10000° W
- Bounds area
- 272 sq nm
- Feature density
- 0.8467 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.6
- Smallest layer
- 1
- Largest layer
- 37
- Area sq km
- 932
- Features per sq km
- 0.24684
- SBDARE Seabed area 37
- COALNE Coastline 31
- DEPARE Depth area 29
- RIVERS River 28
- DEPCNT Depth contour 26
- LAKARE 24
- M_QUAL Data quality 15
- SOUNDG Sounding 9
- LNDARE Land area 8
- LNDRGN Land region 8
- SEAARE Sea area 2
- AIRARE 1
- BCNSPP Special purpose beacon 1
- DAYMAR 1
- LIGHTS Light 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- MIPARE 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/US4AK6TL.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6TL/1.1/US4AK6TL.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6TL/1.1/US4AK6TL.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6TL/1.1/US4AK6TL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6TL/1.1/US4AK6TL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6TL/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Apr 28, 2021 | metadata.json |