09CL
Alta Sierra Airport
Alta Sierra Airport (09CL) is a general-aviation airfield serving Grass Valley, California. The field lies at 2,275 ft (693 m) above sea level and has a single runway of 2,834 ft (864 m), asphalt. Its nearest neighbour is Nevada County Airport (KGOO), 7 nm NNE.
Alta Sierra Airport is a smaller field, so Alārium does not attribute movements to it directly — but aircraft flying near it appear on the live map like any other, at their real altitude and on their real track.
Location
- Elevation
- 2,275 ft (693 m)
- Coordinates
- 39.1138, -121.0570
- Serving
- Grass Valley
- Region
- California
- Time zone
- America/Los_Angeles
Runways1 · longest 2,834 ft
The diagram is drawn from published threshold coordinates, so each runway sits where it actually sits — true bearings, true separations, true lengths. Runway widths are exaggerated against length, which at true proportion would draw a hairline. It is a diagram, not a chart to navigate by.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 01/19 | 2,834 ft864 m | 50 ft | Asphalt | — |
Nearby airfields
Runway and field data from the OurAirports public-domain dataset. Positions are ADS-B, which covers most but not all aircraft.