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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.
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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
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16:American Viticultural Area in California
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107:Oak Knoll District of Napa Valley AVA
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265:from the original on August 29, 2018
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192:varies from near sea level at the
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294:. Napa, CA: Lee Enterprises, Inc
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87:Diamond Mountain District AVA
342:. You can help Knowledge by
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178:American Viticultural Area
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184:just east of the city of
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127:Stags Leap District AVA
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291:Napa Valley Register
259:Appellation America
198:Vaca Mountain Range
180:located within the
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296:. Retrieved
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267:. Retrieved
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237:. Retrieved
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111:Oakville AVA
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336:wine region
190:appellation
29:Wine region
383:Categories
209:References
194:Napa River
161:Pinot noir
157:Chardonnay
141:Total area
263:Archived
261:. 2007.
188:. The
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54:Country
239:May 8,
176:is an
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300:2011
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186:Napa
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