NOAA S-57 chart cell
Shumagin Islands to Sanak Islands
US3AK50M
- Usage band
- Coastal · code 3
- Current edition
- 26.1
- Features
- 5,149
- S-57 layers
- 48
- Published
- Sep 12, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.03626° N
- South
- 53.43130° N
- West
- 162.82893° W
- East
- 158.86059° W
- Center
- 54.73378° N, 160.84476° W
- Bounds area
- 21,514 sq nm
- Feature density
- 0.2393 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 107.3
- Smallest layer
- 1
- Largest layer
- 1,106
- Area sq km
- 73,791
- Features per sq km
- 0.06978
- UWTROC Underwater rock 1,106
- DEPCNT Depth contour 712
- DEPARE Depth area 661
- RIVERS River 514
- COALNE Coastline 468
- LNDARE Land area 405
- SBDARE Seabed area 394
- LNDELV 149
- WEDKLP 137
- OBSTRN Obstruction 129
- LNDRGN Land region 72
- SEAARE Sea area 69
- LAKARE 57
- SOUNDG Sounding 49
- SLOGRD 32
- SLOTOP 30
- M_QUAL Data quality 16
- TESARE 16
- LIGHTS Light 15
- WATTUR 14
Nearby Chart Cells
Coastal 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/US3AK50M.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/coastal/US3AK50M/26.1/US3AK50M.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/coastal/US3AK50M/26.1/US3AK50M.001
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3AK50M/26.1/US3AK50M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3AK50M/26.1/US3AK50M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3AK50M/26.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 26.1 | Sep 12, 2025 | metadata.json |