St. Helena is an American Viticultural Area (AVA) located within Napa Valley landform, centered in and around the town of St. Helena, California. The wine appellation was established as the nation's 127th, the state's 75th and county's twelfth AVA on September 11, 1995 by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Mr. Charles A. Carpy, Chairman of the St. Helena Appellation Committee, proposing to establish a new viticultural area in Napa County to be known as "St. Helena."