NOAA S-57 chart cell
Lake Tahoe - Southwest
US4CA2FR
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 299
- S-57 layers
- 31
- Published
- Jan 7, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.00000° N
- South
- 38.70000° N
- West
- 120.30000° W
- East
- 120.00000° W
- Center
- 38.85000° N, 120.15000° W
- Bounds area
- 253 sq nm
- Feature density
- 1.1834 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 9.6
- Smallest layer
- 1
- Largest layer
- 43
- Area sq km
- 867
- Features per sq km
- 0.34501
- SLCONS Shoreline construction 43
- BUISGL 37
- UWTROC Underwater rock 34
- DEPARE Depth area 26
- DEPCNT Depth contour 26
- SBDARE Seabed area 18
- LNDRGN Land region 17
- COALNE Coastline 11
- BCNSPP Special purpose beacon 10
- DAYMAR 10
- OBSTRN Obstruction 10
- RIVERS River 10
- PILPNT 7
- BUAARE 5
- BOYLAT Lateral buoy 4
- LNDARE Land area 4
- RESARE 4
- SEAARE Sea area 4
- LIGHTS Light 3
- ADMARE 2
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/US4CA2FR.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CA2FR/1.0/US4CA2FR.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CA2FR/1.0/US4CA2FR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CA2FR/1.0/US4CA2FR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CA2FR/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 7, 2026 | metadata.json |