The Red Hills Lake County AVA is an American Viticultural Area

American Viticultural Area

An 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 Lake County

Lake County, California

Lake County is a county located in the north central portion of the U.S. state of California, north of the San Francisco Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the county and the largest natural lake wholly within California...

, California

California

California 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...

. The wine region lies along the southwestern shores of Clear Lake, separating Excelsior Valley to the east from Big Valley

Big Valley, Calaveras County, California

Big Valley is an unincorporated community in Calaveras County, California. It lies at an elevation of 2155 feet ....

 to the west. The hills lie at the foot of Mount Konocti

Mount Konocti

Mount Konocti is a volcano in Lake County, California on the south shore of Clear Lake. At , it is the second highest peak in the Clear Lake Volcanic Field, which consists of numerous volcanic domes and cones ranging from 10,000 to 2.1 million years old....

, an extinct volcano. The terrain is rolling hills with elevations between 1400 feet (426.7 m) and 3000 feet (914.4 m) above sea level. The Red Hills receive an average of 25 inches (64 cm) to 40 inches (102 cm) in rainfall each year.