The Wild Horse Valley AVA is an

American Viticultural Area An American Viticultural Area (AVA) is a designated wine grape-growing region in the United States, providing an official appellation for the mutual benefit of winery, wineries and consumers. Winemakers frequently want their consumers to know abo ...

whose borders overlap both

Napa County Napa County () is a county north of San Pablo Bay located in the northern portion of the U.S. state of California. As of the 2020 census, the population was 138,019. The county seat is the City of Napa. Napa County was one of the original co ...

and

Solano County Solano County () is a county located in the U.S. state of California. As of the 2020 census, the population was 453,491. The county seat is Fairfield. Solano County comprises the Vallejo–Fairfield, CA Metropolitan Statistical Area, which is ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

and is partially contained within the

Napa Valley AVA Napa Valley is an American Viticultural Area (AVA) located in Napa County in California's Wine Country. It was established by the Bureau of Alcohol, Tobacco and Firearms (ATF) on January 27, 1981. Napa Valley is considered one of the premier ...

. 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 ...

's southerly location results in more hours of sunshine than other locations in

Napa Valley Napa Valley is an American Viticultural Area (AVA) located in Napa County in California's Wine Country. It was established by the Bureau of Alcohol, Tobacco and Firearms (ATF) on January 27, 1981. Napa Valley is considered one of the premier ...

or nearby Green Valley. The 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 ch ...

results in a cooler climate, making Wild Horse Valley attractive for the cultivation of

grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ...

s like

Pinot noir Pinot Noir () is a red-wine grape variety of the species ''Vitis vinifera''. The name may also refer to wines created predominantly from pinot noir grapes. The name is derived from the French language, French words for ''pine'' and ''black.' ...

Geography and climate

The Wild Horse Valley AVA features two distinct subregions. To the west, the area is cooled by San Pablo Bay, although the elevation keeps the area above the fogline. The eastern half, being protected by the slope of the ground, is much warmer. The soil type is generally volcanic throughout the entire AVA.

History

Grapes were first planted in the area in the 1880s. The current vineyard plantings date back to 1980, with commercial production starting in 1985.

Wild Horse Vineyard

The largest vineyard in the Wild Horse Valley AVA was the Wild Horse Vineyard of Napa Valley. Neglected crops can become places for pests to become established and then spread. The European Grapevine Moth (EGVM) larvae feed on grapes, and was first found in Napa Valley in 2009. Since then, Napa Valley has spent nearly $60 million to eradicate the moth. The recent wildfires destroyed the Wild Horse Valley vineyards.

References

American Viticultural Areas of the San Francisco Bay Area Geography of Napa County, California Geography of Solano County, California American Viticultural Areas 1988 establishments in California {{Wine-region-stub