NOAA S-57 chart cell
Alaska
US4AK7MP
- Usage band
- Approach · code 4
- Current edition
- 1.2
- Features
- 52
- S-57 layers
- 11
- Published
- Jul 6, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 71.10000° N
- South
- 70.80000° N
- West
- 151.20000° W
- East
- 150.00000° W
- Center
- 70.95000° N, 150.60000° W
- Bounds area
- 424 sq nm
- Feature density
- 0.1228 / sq nm
Chart Statistics
11 largest layers shown
- Average features per layer
- 4.7
- Smallest layer
- 1
- Largest layer
- 13
- Area sq km
- 1,453
- Features per sq km
- 0.03579
- SOUNDG Sounding 13
- DEPARE Depth area 11
- DEPCNT Depth contour 10
- M_QUAL Data quality 6
- M_NPUB 3
- SEAARE Sea area 3
- MAGVAR Magnetic variation 2
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 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/US4AK7MP.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/US4AK7MP.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/US4AK7MP.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/US4AK7MP.002
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/US4AK7MP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/US4AK7MP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK7MP/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Jul 6, 2023 | metadata.json |