NOAA S-57 chart cell
Alaska
US4AK5MZ
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 1,637
- S-57 layers
- 51
- Published
- May 20, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.00000° N
- South
- 56.70000° N
- West
- 133.20000° W
- East
- 132.60000° W
- Center
- 56.85000° N, 132.90000° W
- Bounds area
- 355 sq nm
- Feature density
- 4.6135 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.1
- Smallest layer
- 1
- Largest layer
- 287
- Area sq km
- 1,217
- Features per sq km
- 1.34509
- DEPCNT Depth contour 287
- COALNE Coastline 208
- UWTROC Underwater rock 184
- DEPARE Depth area 182
- SBDARE Seabed area 141
- SLCONS Shoreline construction 107
- LNDARE Land area 74
- BUISGL 62
- LNDELV 53
- RIVERS River 51
- SLOGRD 39
- OBSTRN Obstruction 29
- LNDRGN Land region 28
- M_QUAL Data quality 24
- WEDKLP 22
- PONTON 15
- SOUNDG Sounding 15
- SEAARE Sea area 13
- MORFAC 11
- BUAARE 8
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/US4AK5MZ.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5MZ/1.1/US4AK5MZ.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5MZ/1.1/US4AK5MZ.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5MZ/1.1/US4AK5MZ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5MZ/1.1/US4AK5MZ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5MZ/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | May 20, 2025 | metadata.json |