Willie’s Distillery Million Acre Bourbon is grown, milled, mashed, fermented, and distilled entirely on-site in Montana corn, barley, and oats sourced from the distillery’s own working farm. That full grain-to-glass control is rare even among craft distillers, most of whom buy grain from a third party. Bottled at 100 proof. Montana’s dramatic temperature swings push barrel interaction differently than a Kentucky rickhouse, giving it a distinct regional character within the bourbon category. This is a bourbon built around place as much as process. Pour it neat first to catch the Montana grain character.