It’s evangelicals versus wineries in a Southern California battle for land use, as churches seek to alter the environment of Temecula’s American Viticultural Area. An AVA is a designated wine grape-growing region, as defined by the Alcohol and Tobacco Tax and Trade Bureau (TTB), United States Department of the Treasury. Temecula is located in Riverside County, about 90 minutes equidistant from Los Angeles, Orange, and San Diego Countries.