NOAA S-57 chart cell
Unimak and Akutan Passes and approaches
US3AK61M
- Usage band
- Coastal · code 3
- Current edition
- 32.0
- Features
- 5,665
- S-57 layers
- 52
- Published
- May 6, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 55.53870° N
- South
- 53.24033° N
- West
- 167.09143° W
- East
- 162.05052° W
- Center
- 54.38952° N, 164.57098° W
- Bounds area
- 24,317 sq nm
- Feature density
- 0.233 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 108.9
- Smallest layer
- 1
- Largest layer
- 948
- Area sq km
- 83,406
- Features per sq km
- 0.06792
- UWTROC Underwater rock 948
- DEPCNT Depth contour 819
- DEPARE Depth area 769
- COALNE Coastline 609
- SBDARE Seabed area 593
- LNDARE Land area 466
- RIVERS River 309
- LNDELV 219
- SLOGRD 162
- WEDKLP 150
- OBSTRN Obstruction 83
- M_QUAL Data quality 75
- SEAARE Sea area 72
- LNDRGN Land region 58
- LAKARE 57
- SOUNDG Sounding 54
- WATTUR 29
- LIGHTS Light 24
- DAYMAR 18
- ICEARE 13
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/US3AK61M.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3AK61M/32.0/US3AK61M.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3AK61M/32.0/US3AK61M.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3AK61M/32.0/US3AK61M.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3AK61M/32.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 32.0 | May 6, 2026 | metadata.json |