California Breweries History: Mount Saint Helena Brewing Company Mount St. Helena Brewing Company is a Northern California microbrewery founded in 1996 by Phil Box, Ken Davis and Jim Garrett. The Mount St. Helena brewery also features a full service restaurant, serving lunch and dinner. The Mount St Helena Brewing Company (named for nearby Mount St Helena )is located on Calistoga Street, the main road through the town of Middletown, California. Mount St. Helena Brewing Company pours six styles of beer, including the award winning Palisades Pale Ale, English Style Brown and Imperial Stout. These ales were awarded silver medals in the World Beer Championships. Their Honey Wheat Ale and Palisades Pale Ale won Gold Medals at the 1999 California State Fair.