Sioux City is a brand known for its range of traditional American beverages, particularly sarsaparilla, a soft drink with a root beer-like flavor. It was created by White Rock Beverages, a company with a long history dating back to in Waukesha, Wisconsin. The brand, named after the city in Iowa, reflects a nostalgic, Old West theme. Sioux City became famous for offering a taste of classic Americana, often associated with cowboy and Western imagery, and is especially renowned for its authentic sarsaparilla.