NOAA S-57 chart cell
Approach to Yukon River
US4AK6NR
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 32
- S-57 layers
- 14
- Published
- Sep 9, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 63.60000° N
- South
- 63.30000° N
- West
- 163.80000° W
- East
- 163.20000° W
- Center
- 63.45000° N, 163.50000° W
- Bounds area
- 290 sq nm
- Feature density
- 0.1103 / sq nm
Chart Statistics
14 largest layers shown
- Average features per layer
- 2.3
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 995
- Features per sq km
- 0.03217
- SBDARE Seabed area 7
- DEPARE Depth area 5
- DEPCNT Depth contour 4
- M_QUAL Data quality 3
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- TESARE 2
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- SEAARE Sea area 1
- UNSARE 1
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/US4AK6NR.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6NR/1.1/US4AK6NR.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6NR/1.1/US4AK6NR.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6NR/1.1/US4AK6NR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6NR/1.1/US4AK6NR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6NR/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Sep 9, 2025 | metadata.json |