[1][4] The 59 wine industry members who constitute PRAVAC cumulatively own or manage over 10,000 acres (4,047 ha) of cultivated vineyards within the proposed AVAs.
In the early 1920s, Ignacy Jan Paderewski, a noted pianist, composer and prime minister of Poland, planted Petite Sirah and Zinfandel on his Rancho San Ignacio vineyard in the Adelaida area.
[5] In 1964, Dr. Stanley Hoffman purchased 1,200 acres (486 ha) in the locale with the assistance of influential winemaker André Tchelistcheff and established vineyards creating the Hoffman Mountain Ranch Winery (HMR), the first modern commercial winery to be built in San Luis Obispo County after Prohibtion, was designed and constructed from 1972 to 1975.
[3] The area lies in the Santa Lucia Range with high mountain slopes grading to foothills with elevations spanning 900 to 2,200 feet (270–670 m).
[1] The most widely planted varieties in the Adelaida District AVA are Mourvèdre, Zinfandel, Cabernet Sauvignon, Syrah, Grenache and Merlot.