Stone Brewing is a brewery headquartered in Escondido, California, USA. Founded in 1996 in San Marcos, California, it is the largest brewery in Southern California. As of 2015, it was the 10th largest craft brewery in the United States and 15th largest brewery overall, based on sales volume. The brewerys first beer was Stone Pale Ale, which the company considers to be its flagship ale. The companys best known brand is Arrogant Bastard Ale, which has been described as a "watershed beer" that "put San Diego on the craft brew map." Since 2015 Arrogant Bastard has operated as its own product line, Bastard Brewing, produced at multiple breweries around the country. Most of Stones beers are characteristic of west-coast craft brews, meaning that they have a high hop content. Compared to the macro-produced lagers, many Stone brews feature alcohol percentages that are well above average. The alcohol-by-volume content of Stone brews ranges from 4.8% to 13%. Stone Brewing is rated as a "world class brewery" by the two largest beer enthusiast websites, RateBeer and BeerAdvocate. Stone Brewing has been voted by the readers of Beer Advocate as the #1 "All Time Top Brewery on Planet Earth."