The Coombsville AVA is an
American Viticultural Area located within the
Napa Valley AVA just east of the city of
Napa. The
appellation
An appellation is a legally defined and protected geographical indication primarily used to identify where the grapes for a wine were grown, although other types of food often have appellations as well. Restrictions other than geographical boun ...
varies from near sea level at the
Napa River
The Napa River is a river approximately long in the U.S. state of California. It drains a famous wine-growing region called the Napa Valley, in the mountains north of the San Francisco Bay. Milliken Creek and Mt. Veeder watersheds are a few ...
on the west to 1,900 feet at the ridge of the
Vaca Mountain Range. Proximity to
San Pablo Bay
San Pablo Bay is a tidal estuary that forms the northern extension of San Francisco Bay in the East Bay and North Bay regions of the San Francisco Bay Area in northern California.
Most of the Bay is shallow; however, there is a deep water c ...
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. 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. The appellation was officially designated the 16th sub-appellation of the Napa Valley AVA on December 14, 2011.
References
External links
Official Site
American Viticultural Areas of the San Francisco Bay Area
Napa Valley
Vaca Mountains
Geography of Napa County, California
2011 establishments in California
American Viticultural Areas
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