NOAA S-57 chart cell
Clarence Strait - Kasaan Peninsula to Union Bay
US4AK5IN
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 4,063
- S-57 layers
- 44
- Published
- Feb 14, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 55.80000° N
- South
- 55.50000° N
- West
- 132.60000° W
- East
- 132.00000° W
- Center
- 55.65000° N, 132.30000° W
- Bounds area
- 366 sq nm
- Feature density
- 11.0973 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 92.3
- Smallest layer
- 1
- Largest layer
- 849
- Area sq km
- 1,256
- Features per sq km
- 3.23545
- DEPCNT Depth contour 849
- DEPARE Depth area 715
- SBDARE Seabed area 680
- UWTROC Underwater rock 664
- COALNE Coastline 331
- LNDARE Land area 217
- RIVERS River 127
- WEDKLP 85
- SLCONS Shoreline construction 60
- BUISGL 51
- LNDRGN Land region 49
- OBSTRN Obstruction 33
- SEAARE Sea area 27
- LNDELV 26
- M_QUAL Data quality 23
- SLOGRD 14
- LIGHTS Light 13
- SOUNDG Sounding 12
- DAYMAR 11
- BCNLAT Lateral beacon 7
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/US4AK5IN.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5IN/1.1/US4AK5IN.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5IN/1.1/US4AK5IN.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5IN/1.1/US4AK5IN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5IN/1.1/US4AK5IN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5IN/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Feb 14, 2025 | metadata.json |