291 Colorado Bourbon Whiskey, Finished with Aspen Wood Staves, Barrel Proof, Single Barrel291 Colorado Bourbon Whiskey is not your traditional Southern bourbon. Aspen stave finished and bottled at barrel proof for a one of a kind, Colorado flavor. Full bodied, straight from the barrel, hand signed by the founder. Our flagship, Colorado Bourbon Whiskey Barrel Proof, single barrel Bourbon whiskey distilled from a Bourbon mash in a copper pot still, aged in American white oak deep char barrels and finished with toasted Aspen staves. Liquid