Rolling Rock is a 4.5% abv

ABV

ABV is a three-letter acronym that may refer to:* Alcohol by volume, a measure of the alcohol content of alcoholic drinks* Nnamdi Azikiwe International Airport, Abuja, Nigeria, from its IATA airport code...

 pale lager

Pale lager

Pale lager is a very pale to golden-coloured beer with a well attenuated body and a varying degree of noble hop bitterness. The brewing process for this beer developed in the mid 19th century when Gabriel Sedlmayr took pale ale brewing techniques back to the Spaten Brewery in Germany and applied it...

 launched in 1939 by the Latrobe Brewing Company

Latrobe Brewing Company

Latrobe Brewing Company in Latrobe, Pennsylvania, founded in 1893, was one of the largest breweries in the United States and the maker of Rolling Rock beer...

. Although founded as a local beer

Beer

Beer is the world's most widely consumed andprobably oldest alcoholic beverage; it is the third most popular drink overall, after water and tea. It is produced by the brewing and fermentation of sugars, mainly derived from malted cereal grains, most commonly malted barley and malted wheat...

 in Western Pennsylvania

Western Pennsylvania

Western Pennsylvania consists of the western third of the state of Pennsylvania in the United States. Pittsburgh is the largest city in the region, with a metropolitan area population of about 2.4 million people, and serves as its economic and cultural center. Erie, Altoona, and Johnstown are its...

, it was marketed aggressively and eventually became a national product. The brand was sold to Anheuser-Busch

Anheuser-Busch

Anheuser-Busch Companies, Inc. , is an American brewing company. The company operates 12 breweries in the United States and 18 in other countries. It was, until December 2009, also one of America's largest theme park operators; operating ten theme parks across the United States through the...

 of St. Louis, Missouri

St. Louis, Missouri

St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...

, in mid 2006, which transferred brewing operations to New Jersey.
From 1939 until 2006, Rolling Rock was brewed at the Latrobe Brewing Company

Latrobe Brewing Company

Latrobe Brewing Company in Latrobe, Pennsylvania, founded in 1893, was one of the largest breweries in the United States and the maker of Rolling Rock beer...

. In May, 2006, Anheuser-Busch purchased the Rolling Rock and Rolling Rock Green Light brands from InBev

InBev

InBev is a subsidiary of Anheuser-Busch InBev. The company existed independently for several years - since the merger between Interbrew and AmBev and until the acquisition of Anheuser-Busch. InBev has operations in over 30 countries and sales in over 130 countries...

 for $82 million and began brewing Rolling Rock at its Newark

Newark, New Jersey

Newark is the largest city in the American state of New Jersey, and the seat of Essex County. As of the 2010 United States Census, Newark had a population of 277,140, maintaining its status as the largest municipality in New Jersey. It is the 68th largest city in the U.S...

 facility in mid July, 2006.