The
Cienega Valley AVA is an
American Viticultural AreaAn American Viticultural Area is a designated wine grape-growing region in the United States distinguishable by geographic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau , United States Department of the Treasury....
located in western
San Benito CountySan Benito County is a county located in the Coast Range Mountains of the U.S. state of California, south of San Jose. As of 2010 the population was 55,269. The county seat is Hollister, which includes nearly two-thirds of the county's population. El Camino Real passes through the county and...
,
CaliforniaCalifornia is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
. It is part of the larger
Central Coast AVAThe Central Coast AVA is a large American Viticultural Area that spans from Santa Barbara County in the south to the San Francisco Bay Area in the north. The boundaries of the Central Coast include portions of six counties. With around planted to wine grapes, Chardonnay accounts for more than...
. The valley was once a major source of
wineWine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...
grapeA grape is a non-climacteric fruit, specifically a berry, that grows on the perennial and deciduous woody vines of the genus Vitis. Grapes can be eaten raw or they can be used for making jam, juice, jelly, vinegar, wine, grape seed extracts, raisins, molasses and grape seed oil. Grapes are also...
s for
Almaden VineyardsAlmaden Vineyards is a winery located in Escalon and Madera, California. They claim to be California's oldest winery.Their original location was at the Old Almaden Winery south of San José between Los Gatos and Almaden...
before it was acquired by
Constellation BrandsConstellation Brands, Inc., headquartered in Victor, New York, is the world’s leading wine company with a broad portfolio of widely admired premium brands across the wine, beer and spirits categories.-History and description:...
in 1987. Approximately 1100 feet (335.3 m) above sea level, the valley floor is divided by the
San Andreas faultThe San Andreas Fault is a continental strike-slip fault that runs a length of roughly through California in the United States. The fault's motion is right-lateral strike-slip...
. Soil on the east side of the fault is predominately
graniteGranite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...
and
sandstoneSandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...
, whereas soils on the west side of the fault are predominately
graniteGranite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...
and
limestoneLimestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
.