The iconic Rover dog mascot graces the label of Dog n Suds root beer as well as signs at this legendary chain of drive-in hot dog joints. Opening its first location in 1953 in Champaign, Illinois. From the beginning, their root beer was part of their winning formula. At its peak in the 1970s, Dog n Suds had over 650 restaurants in 35 states. You can still visit one of the 15 Dog n Suds drive ins still open today in Arknansas, California, Illinois, Indiana, Michigan, Ohio and Wisconsin. Billed as the world's creamiest root beer, Dog n Suds Root Beer is the perfect beverage to wash down a hot dog.