The Big Valley District AVA viticultural area is located south of the southern shore of Clear Lake and established on October 2, 2013. It covers approximately 11,000 acres of land with six bonded wineries, 43 vineyards, and roughly 1,800 acres planted at its official recognition. Big Valley was the first settlement in Lake County and has a long history of agricultural activity. Sauvignon Blanc is the most widely planted varietal in this area. The boundaries of this region include Clear Lake to the north, Mount Konocti and the Red Hills Lake County AVA to the east, Merritt Road and Bell Hill Road to the south, and Highland Springs Road to the west.