NOAA S-57 chart cell
Alaska
US4AK5RG
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 2,878
- S-57 layers
- 39
- Published
- Mar 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 58.50000° N
- South
- 58.20000° N
- West
- 136.80000° W
- East
- 136.20000° W
- Center
- 58.35000° N, 136.50000° W
- Bounds area
- 340 sq nm
- Feature density
- 8.4527 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 73.8
- Smallest layer
- 1
- Largest layer
- 1,045
- Area sq km
- 1,168
- Features per sq km
- 2.46441
- UWTROC Underwater rock 1,045
- COALNE Coastline 368
- LNDARE Land area 311
- DEPCNT Depth contour 269
- DEPARE Depth area 251
- SBDARE Seabed area 142
- OBSTRN Obstruction 94
- LNDELV 69
- RIVERS River 62
- SLOGRD 49
- SLOTOP 45
- WEDKLP 37
- M_QUAL Data quality 29
- LNDRGN Land region 23
- SEAARE Sea area 23
- SOUNDG Sounding 6
- BUISGL 5
- CTNARE Caution area 5
- DAYMAR 5
- LIGHTS Light 5
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/US4AK5RG.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/US4AK5RG.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/US4AK5RG.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/US4AK5RG.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/US4AK5RG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/US4AK5RG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5RG/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Mar 9, 2026 | metadata.json |