November 19, 1981: Guenoc Valley AVA was established. It is located in Lake County, 24 km north of Calistoga town. The AVA spans approximately 4500 acres with 504 acres of planted vineyards. Guenoc Valley AVA is located on the elevated flanks of the Mayacamas mountains at 700-1500ft above sea level. The AVA’s terroir is suitable for Cabernet Sauvignon, Merlot, Cabernet Blanc, and Syrah, among other varietals. Guenoc Valley holds the distinction of being the first to be established for a region with a single winery. The valley itself has a long tradition of wine making, and is surrounded by rocky, mountainous terrain.

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