Benmore Valley 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. The TTB filing in 1991 mentioned 125 acres of Chardonnay. Most of the grapes last produced there were used by Geyser Peak Winery. As of February 2018, there are no wineries or planted vineyards left in the AVA, which is no longer marketed by Lake County winegrape growers. The main crop in the area is now cannabis.