Rock Town Four Grain Sour Mash Arkansas Bourbon Whiskey is a premium small batch bourbon whiskey distilled, aged and bottled at our distillery in Little Rock, Arkansas. Distilled from a mash of Arkansas grown corn, wheat, rye and malted barley. The mash is “soured” by using part of the previous batch’s stillage to start the Sour Mash Bourbon cook. As with all our whiskies, our Four Grain Sour Mash Bourbon Whiskey is made from grain to glass right here at the distillery in Little Rock. We’re makers not fakers