NOAA S-57 chart cell
Akutan Pass and Vicinity
US4AK3HI
- Usage band
- Approach · code 4
- Current edition
- 2.1
- Features
- 5,149
- S-57 layers
- 58
- Published
- Feb 19, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.00000° N
- South
- 53.70000° N
- West
- 166.80000° W
- East
- 166.20000° W
- Center
- 53.85000° N, 166.50000° W
- Bounds area
- 383 sq nm
- Feature density
- 13.4519 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 88.8
- Smallest layer
- 1
- Largest layer
- 1,329
- Area sq km
- 1,313
- Features per sq km
- 3.92194
- UWTROC Underwater rock 1,329
- SBDARE Seabed area 550
- COALNE Coastline 511
- DEPCNT Depth contour 361
- DEPARE Depth area 344
- LNDARE Land area 324
- WEDKLP 284
- RIVERS River 260
- LNDELV 179
- OBSTRN Obstruction 170
- BUISGL 135
- M_QUAL Data quality 99
- SLOTOP 78
- SLOGRD 66
- SLCONS Shoreline construction 64
- LAKARE 49
- SEAARE Sea area 46
- SILTNK 31
- MORFAC 29
- LNDMRK 26
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/US4AK3HI.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK3HI/2.1/US4AK3HI.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK3HI/2.1/US4AK3HI.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3HI/2.1/US4AK3HI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3HI/2.1/US4AK3HI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3HI/2.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.1 | Feb 19, 2026 | metadata.json |