BACKSTORY: A city in southwestern Riverside County, California. More than 40 years after Richard Break and Leon Borel first planted 56 varieties of wine-making grapes in five different locations for the newly formed Rancho California Development Corporation, the Temecula Valley has become recognized as a full-fledged appellation. In 1967 John Moramarco planted the first 1,000 acres of commercial winegrapes for Brookside Vineyards and Winery. Today there are more than 35 wineries and more than 3,500 acres of producing vineyards. The wine country is east of historic Old Town Temecula, with a variety of tasting rooms.