The first of many restaurant locations: Stone Brewing World Bistro & Gardens – Escondido. Stone Brewing is a brewery headquartered in Escondido, California, USA. Our brewery, founded in 1996 in San Marcos, California, it is the largest brewery in Southern California. Based on 2016 sales volume it is the ninth largest brewery in the United States. The brewery's first beer was Stone Pale Ale, which the company considers to be its flagship ale.