NOAA S-57 chart cell
Gastineau Channel and Taku Inlet
US4AK5RK
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 1,542
- S-57 layers
- 42
- Published
- May 20, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.50000° N
- South
- 58.20000° N
- West
- 134.40000° W
- East
- 133.80000° W
- Center
- 58.35000° N, 134.10000° W
- Bounds area
- 340 sq nm
- Feature density
- 4.5289 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 36.7
- Smallest layer
- 1
- Largest layer
- 265
- Area sq km
- 1,168
- Features per sq km
- 1.3204
- UWTROC Underwater rock 265
- DEPCNT Depth contour 238
- COALNE Coastline 194
- DEPARE Depth area 184
- RIVERS River 118
- SBDARE Seabed area 94
- LNDELV 64
- SLOGRD 64
- PILPNT 59
- BUISGL 33
- LNDARE Land area 33
- OBSTRN Obstruction 24
- SLCONS Shoreline construction 23
- MORFAC 22
- SEAARE Sea area 14
- LNDRGN Land region 13
- M_QUAL Data quality 13
- PONTON 9
- SLOTOP 8
- LIGHTS Light 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/US4AK5RK.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/US4AK5RK.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/US4AK5RK.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/US4AK5RK.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/US4AK5RK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/US4AK5RK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5RK/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | May 20, 2025 | metadata.json |