NOAA S-57 chart cell
Alaska
US4AK6RM
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 63
- S-57 layers
- 23
- Published
- May 24, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 64.80000° N
- South
- 64.50000° N
- West
- 166.80000° W
- East
- 166.20000° W
- Center
- 64.65000° N, 166.50000° W
- Bounds area
- 278 sq nm
- Feature density
- 0.2268 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 2.7
- Smallest layer
- 1
- Largest layer
- 9
- Area sq km
- 953
- Features per sq km
- 0.06612
- DEPARE Depth area 9
- DEPCNT Depth contour 8
- RIVERS River 8
- M_QUAL Data quality 7
- SBDARE Seabed area 4
- COALNE Coastline 3
- LNDRGN Land region 3
- M_NPUB 3
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- UWTROC Underwater rock 2
- ADMARE 1
- BCNSPP Special purpose beacon 1
- BUAARE 1
- CONZNE 1
- DAYMAR 1
- EXEZNE 1
- LAKARE 1
- LIGHTS Light 1
- LNDARE Land area 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/US4AK6RM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK6RM/1.1/US4AK6RM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK6RM/1.1/US4AK6RM.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6RM/1.1/US4AK6RM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6RM/1.1/US4AK6RM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6RM/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | May 24, 2023 | metadata.json |