291 Colorado Barrel Proof Single Barrel Bourbon Whiskey291 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. 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 Gold Jim Murrays Whiskey