A family-run ranch and winery. Sustainable farming includes sheep in the vineyards, cattle in the valleys, and old-fashioned farming practices to produce what Wine Enthusiast Magazine called “the best California Tempranillo in this critic’s experience.”

Six Sigma Ranch & Winery is located southeast of Lower Lake in beautiful Lake County. The winery is less than an hour drive north of Napa Valley, and approximately 100 miles from San Francisco and Sacramento.