NOAA S-57 chart cell
Alaska
US4AK5NL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,091
- S-57 layers
- 35
- Published
- Mar 24, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 57.15000° N, 133.50000° W
- Bounds area
- 352 sq nm
- Feature density
- 3.0996 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.2
- Smallest layer
- 1
- Largest layer
- 185
- Area sq km
- 1,207
- Features per sq km
- 0.90371
- COALNE Coastline 185
- DEPCNT Depth contour 169
- SBDARE Seabed area 169
- DEPARE Depth area 164
- UWTROC Underwater rock 127
- LNDARE Land area 48
- RIVERS River 35
- WEDKLP 31
- LNDRGN Land region 25
- SLOGRD 17
- M_QUAL Data quality 15
- LNDELV 14
- PILPNT 13
- SEAARE Sea area 13
- OBSTRN Obstruction 9
- LIGHTS Light 7
- SOUNDG Sounding 7
- DAYMAR 6
- M_NPUB 5
- BUISGL 4
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/US4AK5NL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5NL/1.0/US4AK5NL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5NL/1.0/US4AK5NL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5NL/1.0/US4AK5NL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5NL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 24, 2025 | metadata.json |