St. Supery first invested in vineyards in 1982 with the acquisition of Dollarhide Ranch, a 1, 500-acre property in northeast Napa Valley. The winery has continued to invest in vineyards since that time. St. Supery has over 675 planted acres in Napa Valley. Its trademark varietals are Napa Valley Sauvignon Blanc and Cabernet Sauvignon. St. Supery is open to the public seven days a week with tasting and touring every day. The winery offers events and seminars throughout the year. Visitors are welcome to take a self-guided tour of St. Supery's Winery from the gallery level. A map guides visitors to exhibits and explanatory reader boards at each point of interest. There is no cost to visitors taking a self-guided tour. St. Supery Visitor Center has an art gallery above the tasting room, featuring seasonal exhibits by local and internationally-renowned artists.