In contrast to their more well-known Rye blends, the Prairie reserve is a blend of two different Bourbons. One is 6-years-old, the other is 10. The wishkies were both sourced from famous distilleries in Kentucky. How much of each whiskey is High-West's secret. Prairie reserve is big, bold, viscous, and full of maple syrup, caramel, and baking spice flavors.