NOAA S-57 chart cell
Sumner Strait, Clarance Strait and the Inside Passage
US3AK3CM
- Usage band
- Coastal · code 3
- Current edition
- 12.2
- Features
- 10,831
- S-57 layers
- 45
- Published
- Mar 13, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.65464° N
- South
- 55.76172° N
- West
- 134.41045° W
- East
- 131.47554° W
- Center
- 56.20818° N, 132.94299° W
- Bounds area
- 5,254 sq nm
- Feature density
- 2.0614 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 240.7
- Smallest layer
- 1
- Largest layer
- 2,277
- Area sq km
- 18,021
- Features per sq km
- 0.60101
- UWTROC Underwater rock 2,277
- COALNE Coastline 1,995
- LNDARE Land area 1,810
- DEPCNT Depth contour 1,250
- DEPARE Depth area 1,090
- SBDARE Seabed area 460
- SLOGRD 338
- LNDELV 312
- RIVERS River 308
- OBSTRN Obstruction 186
- SEAARE Sea area 130
- WEDKLP 128
- LNDRGN Land region 102
- LIGHTS Light 77
- DAYMAR 73
- BCNSPP Special purpose beacon 57
- M_QUAL Data quality 35
- SOUNDG Sounding 32
- SLCONS Shoreline construction 23
- BCNLAT Lateral beacon 19
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/US3AK3CM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/US3AK3CM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/US3AK3CM.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/US3AK3CM.002
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/US3AK3CM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/US3AK3CM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3AK3CM/12.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 12.2 | Mar 13, 2026 | metadata.json |