[blue_large]Coombsville AVA[/blue_large]
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| Year established | 2011 |
| Climate | Proximity to San Pablo Bay contributes to the temperate climate of Coombsville. Cooling effects of marine air and fog occur almost daily during the growing season, arriving earlier and lingering longer than in the more northern regions of Napa Valley. Temperatures are less extreme during the winter frost season.. |
| Geography | A geographic area shaped like a “cup and saucer”, Coombsville is characterized by gently hilly terrain formed millions of year ago by shifting masses of earth. The rolling terrain provides various aspects that lend to optimization of many varietals, though Cabernet Sauvignon dominates the abundant hillside vineyards. |
| Elevation | 1,900 ft. |
| Soils | The Coombsville soils are dominated by the volcanic rhyolitic tuff sedimentary rock and lava flows of the Vaca Range on the eastern side of the Napa Valley. Located in the wide alluvial deposits created by the wearing down of the hillsides the Coombsville soils contain abundant rock, gravel and, in some areas, are layered with volcanic ash deposits from Mount George. |
| Total Area | 11,000 acres (45 km2) |
| Varietals/characteristics | Cabernet Sauvignon: Bright berry and cherry fruit, and more acidity than wines from Stags Leap District. Chardonnay: Crisp, flora, aromatic, with distinctive pear-mineral flavors and bright acidity. |