NOAA S-57 chart cell
Iphigenia Bay to San Christoval Channel, AK
US4AK5IL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 10,958
- S-57 layers
- 39
- Published
- Mar 14, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 55.80000° N
- South
- 55.50000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 55.65000° N, 133.50000° W
- Bounds area
- 366 sq nm
- Feature density
- 29.9296 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 281
- Smallest layer
- 1
- Largest layer
- 2,854
- Area sq km
- 1,256
- Features per sq km
- 8.72608
- UWTROC Underwater rock 2,854
- DEPCNT Depth contour 2,156
- DEPARE Depth area 1,979
- SBDARE Seabed area 1,166
- LNDARE Land area 912
- COALNE Coastline 649
- WEDKLP 558
- OBSTRN Obstruction 228
- RIVERS River 95
- M_QUAL Data quality 51
- LNDELV 48
- SEAARE Sea area 44
- VEGATN 44
- LNDRGN Land region 41
- BOYLAT Lateral buoy 13
- BUISGL 13
- WATTUR 13
- SOUNDG Sounding 12
- DAYMAR 11
- LAKARE 9
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/US4AK5IL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5IL/1.0/US4AK5IL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5IL/1.0/US4AK5IL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5IL/1.0/US4AK5IL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5IL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 14, 2024 | metadata.json |