NOAA S-57 chart cell
Alaska
US4AK5NH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,390
- S-57 layers
- 33
- Published
- Mar 19, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 136.20000° W
- East
- 135.60000° W
- Center
- 57.15000° N, 135.90000° W
- Bounds area
- 352 sq nm
- Feature density
- 6.7902 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 72.4
- Smallest layer
- 1
- Largest layer
- 430
- Area sq km
- 1,207
- Features per sq km
- 1.97971
- DEPCNT Depth contour 430
- COALNE Coastline 366
- DEPARE Depth area 358
- LNDARE Land area 348
- UWTROC Underwater rock 313
- SBDARE Seabed area 306
- WEDKLP 44
- OBSTRN Obstruction 41
- RIVERS River 38
- SLOGRD 25
- LNDRGN Land region 22
- SEAARE Sea area 20
- LNDELV 18
- M_QUAL Data quality 17
- SOUNDG Sounding 7
- SLOTOP 6
- WATTUR 5
- MAGVAR Magnetic variation 4
- BUISGL 2
- LIGHTS Light 2
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/US4AK5NH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5NH/1.0/US4AK5NH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5NH/1.0/US4AK5NH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5NH/1.0/US4AK5NH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5NH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 19, 2025 | metadata.json |