NOAA S-57 chart cell
Forrester Island, AK
US4AK5FL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 236
- S-57 layers
- 26
- Published
- Mar 21, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.90000° N
- South
- 54.60000° N
- West
- 133.80000° W
- East
- 133.20000° W
- Center
- 54.75000° N, 133.50000° W
- Bounds area
- 374 sq nm
- Feature density
- 0.6302 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.1
- Smallest layer
- 1
- Largest layer
- 63
- Area sq km
- 1,284
- Features per sq km
- 0.18373
- LNDARE Land area 63
- SBDARE Seabed area 59
- UWTROC Underwater rock 21
- DEPARE Depth area 20
- DEPCNT Depth contour 19
- COALNE Coastline 17
- SLOGRD 5
- SOUNDG Sounding 4
- M_QUAL Data quality 3
- ADMARE 2
- CONZNE 2
- EXEZNE 2
- LNDELV 2
- MAGVAR Magnetic variation 2
- OBSTRN Obstruction 2
- SEAARE Sea area 2
- TESARE 2
- BCNSPP Special purpose beacon 1
- CBLSUB 1
- DAYMAR 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/US4AK5FL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5FL/1.0/US4AK5FL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5FL/1.0/US4AK5FL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5FL/1.0/US4AK5FL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5FL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Mar 21, 2024 | metadata.json |