The Special Finishes Collection is an ever-growing exploration of finishes and perspectives on the iconic Yellowstone bourbon profile. And to add to the collection, they created Rum Cask. By finishing for nine weeks in rum cask barrels straight from Havana, Cuba, they impart notes of spice and tropical sweetness on their 4-year Kentucky Straight Bourbon Whiskey. And Yellowstone is excited to include this unique flavor profile with the rest of the Yellowstone family.