NOAA S-57 chart cell
Frederick Sound - Herring Bay to East Brother Island
US4AK5NK
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,522
- S-57 layers
- 28
- Published
- May 10, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.30000° N
- South
- 57.00000° N
- West
- 134.40000° W
- East
- 133.80000° W
- Center
- 57.15000° N, 134.10000° W
- Bounds area
- 352 sq nm
- Feature density
- 7.1652 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 90.1
- Smallest layer
- 1
- Largest layer
- 567
- Area sq km
- 1,207
- Features per sq km
- 2.08905
- UWTROC Underwater rock 567
- DEPCNT Depth contour 565
- DEPARE Depth area 491
- SBDARE Seabed area 419
- WEDKLP 116
- LNDARE Land area 108
- COALNE Coastline 48
- OBSTRN Obstruction 35
- RIVERS River 31
- M_QUAL Data quality 29
- LNDRGN Land region 21
- LNDELV 17
- BUISGL 11
- SEAARE Sea area 10
- SOUNDG Sounding 10
- BCNSPP Special purpose beacon 6
- DAYMAR 6
- LIGHTS Light 6
- MAGVAR Magnetic variation 6
- SLCONS Shoreline construction 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/US4AK5NK.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5NK/1.0/US4AK5NK.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5NK/1.0/US4AK5NK.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5NK/1.0/US4AK5NK.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5NK/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 10, 2024 | metadata.json |