NOAA S-57 chart cell
Lake Tahoe - Northeast
US4NV1QA
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 635
- S-57 layers
- 25
- Published
- Jan 7, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.30000° N
- South
- 39.00000° N
- West
- 120.00000° W
- East
- 119.70000° W
- Center
- 39.15000° N, 119.85000° W
- Bounds area
- 252 sq nm
- Feature density
- 2.5238 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 25.4
- Smallest layer
- 1
- Largest layer
- 199
- Area sq km
- 863
- Features per sq km
- 0.73584
- UWTROC Underwater rock 199
- LNDARE Land area 98
- SBDARE Seabed area 67
- SLCONS Shoreline construction 56
- PILPNT 31
- BUISGL 28
- DEPARE Depth area 27
- DEPCNT Depth contour 26
- COALNE Coastline 25
- RIVERS River 25
- BOYSPP Special purpose buoy 12
- SEAARE Sea area 9
- LNDRGN Land region 7
- BUAARE 5
- OBSTRN Obstruction 5
- ADMARE 3
- SOUNDG Sounding 3
- LIGHTS Light 2
- LNDMRK 1
- M_COVR Coverage 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/US4NV1QA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NV1QA/1.0/US4NV1QA.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NV1QA/1.0/US4NV1QA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NV1QA/1.0/US4NV1QA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NV1QA/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 7, 2026 | metadata.json |