NOAA S-57 chart cell
Alaska
US4AK5ML
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,041
- S-57 layers
- 32
- Published
- Mar 19, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.00000° N
- South
- 56.70000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 56.85000° N, 133.50000° W
- Bounds area
- 355 sq nm
- Feature density
- 5.7521 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 63.8
- Smallest layer
- 1
- Largest layer
- 453
- Area sq km
- 1,217
- Features per sq km
- 1.67705
- UWTROC Underwater rock 453
- COALNE Coastline 347
- SBDARE Seabed area 296
- LNDARE Land area 279
- DEPCNT Depth contour 223
- DEPARE Depth area 176
- LNDRGN Land region 52
- RIVERS River 46
- M_QUAL Data quality 26
- OBSTRN Obstruction 24
- SEAARE Sea area 23
- LNDELV 18
- WEDKLP 14
- BUISGL 11
- SLOGRD 9
- SOUNDG Sounding 8
- CTNARE Caution area 6
- MAGVAR Magnetic variation 6
- M_NPUB 5
- WATTUR 3
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/US4AK5ML.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5ML/1.0/US4AK5ML.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5ML/1.0/US4AK5ML.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5ML/1.0/US4AK5ML.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5ML/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 19, 2025 | metadata.json |