' Shop All - Six Sigma Ranch and Winery

By entering Six Sigma Ranch and Winery's Wine Store, you affirm that you are of legal drinking age in the country where this site is accessed.

Date of Birth:

Birth Month

Birth Day

Birth Year

Ship to

Pick up at the winery

Family, Ranch, Tempranillo

Amazing Experiences

Book your tasting and discover unforgettable wines, wide open landscapes, and the authentic charm of the ranch.

Open Daily

Office & Store 9:00am-4:30pm

Wine Tasting
Sun-Thur 11:00am-4:30pm
Fri-Sat 11:00am-7:30pm

Hiking & Biking Trails 9:00am-4:00pm

Six Sigma Ranch and Winery
13372 Spruce Grove Road
Lower Lake, CA 95457