The Benmore Valley AVA is an American Viticultural Area located in southwestern Lake County, California. The valley is named for Benjamin Moore, a local 19th century cattle rustler. The valley is a high depression in the mountains of southwestern Lake County, and is much cooler than surrounding areas. There are no wineries located within the boundaries of the AVA, and most of the grapes produced there are sourced by Geyser Peak Winery.