NOAA S-57 chart cell
Rat Islands Semisopochnoi Island to Buldir Island
US3AK7BM
- Usage band
- Coastal · code 3
- Current edition
- 11.1
- Features
- 1,701
- S-57 layers
- 36
- Published
- May 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.87862° N
- South
- 50.57947° N
- West
- 175.61365° E
- East
- 179.44161° E
- Center
- 51.72905° N, 177.52763° E
- Bounds area
- 19,650 sq nm
- Feature density
- 0.0866 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 47.3
- Smallest layer
- 1
- Largest layer
- 388
- Area sq km
- 67,396
- Features per sq km
- 0.02524
- LNDARE Land area 388
- UWTROC Underwater rock 281
- DEPARE Depth area 194
- DEPCNT Depth contour 194
- COALNE Coastline 185
- SBDARE Seabed area 87
- RIVERS River 60
- WEDKLP 57
- OBSTRN Obstruction 48
- LNDRGN Land region 47
- LNDELV 40
- SEAARE Sea area 36
- WATTUR 12
- MAGVAR Magnetic variation 10
- DMPGRD 7
- M_QUAL Data quality 7
- ADMARE 6
- SOUNDG Sounding 6
- LAKARE 5
- LNDMRK 4
Nearby Chart Cells
Coastal 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/US3AK7BM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/coastal/US3AK7BM/11.1/US3AK7BM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/coastal/US3AK7BM/11.1/US3AK7BM.001
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3AK7BM/11.1/US3AK7BM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3AK7BM/11.1/US3AK7BM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3AK7BM/11.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 11.1 | May 20, 2026 | metadata.json |