Cucamonga Valley AVA
View of the Cucamonga Valley AVA from Cucamonga Peak
|Type||American Viticultural Area|
|Part of||California, South Coast AVA|
|Size of planted vineyards||1,000 acres (4 km2)|
|Grapes produced||Aleatico, Alicante Bouschet, Cabernet Franc, Cabernet Sauvignon, Chasselas, Grenache, Merlot, Mission, Mourvedre, Palomino, Pedro Ximenes, Petite Sirah, Syrah, Zinfandel|
The Cucamonga Valley AVA is an American Viticultural Area in San Bernardino County, California. It is in the Cucamonga Valley region of the Pomona Valley, about 15 miles (24 km) west of San Bernardino.
Cucamonga Valley is a warm climate for viniculture, with summer temperatures often exceeding 100 °F (38 °C). The valley floor is sandy, alluvial soils. Pierce’s disease has affected vines in the valley.
The Cucamonga Valley AVA was officially approved as an AVA in 1995 by the United States Department of Treasury as a result of a petition, written and filed in 1993 by Gino L. Filippi on behalf of area growers and vintners. The designation enables wineries to use the words Cucamonga Valley on their wine labels when utilizing at least 85% Cucamonga grapes.
Grape cultivation began in the Cucamonga Valley in 1838 by Tiburcio Tapia on the Rancho Cucamonga, a Mexican land grant in Alta California. In 1859 rancher John Rains began large vine plantings in Cucamonga, introducing agriculture on a large scale to replace traditional cattle and sheep raising in the region. By 1917 the Cucamonga-Guasti vineyards spanned over 20,000 acres, and Secondo Guasti was advertising his vineyard as "The Largest in the World." 
When Prohibition began in 1920, the Cucamonga Valley produced more wine grapes than Napa County and Sonoma County combined. The former Mission Vineyard winery, later known as the Virginia Dare Winery, was established in 1910 in Rancho Cucamonga (town). Others included the Thomas Brothers Winery, G. Filippi and Son Winery, and Ellena Bros./Regina Winery.
Following Prohibition (1919-1933) and its end, the wine industry and other agricultural businesses in the Cucamonga Valley faced increasing pressure from the urban expansion of Los Angeles and Orange County. During the 1970s agricultural land in the AVA underwent massive conversion and loss to suburbanization, for families from those counties seeking affordable housing.
The Joseph Filippi Winery & Vineyards and other vintners and growers in the area worked to attain the AVA designation, and have been bringing back winemaking to the Cucamonga Valley.
- Code of Federal Regulations. "§ 9.150 Cucamonga Valley." Archived 2009-09-07 at the Wayback Machine. Title 27: Alcohol, Tobacco and Firearms; Part 9 — American Viticultural Areas; Subpart C — Approved American Viticultural Areas. Retrieved Jan. 23, 2008.
- Appellation America (2007). "Cucamonga Valley (AVA): Appellation Description". Retrieved Jan. 23, 2008.
- "Federal Register | Cucamonga Valley Viticultural Area (94F-011P)". www.federalregister.gov. Retrieved 2016-03-04.
- Inside The Inland Empire: "The Wineries of Rancho Cucamonga are back.", 9 May 2007.
- U.S. Geological Survey Geographic Names Information System: Cucamonga Winery Historical Landmark
- Federal Ruling, Establishment of Cucamonga Valley AVA
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