The Post Commissary (1878) was the warehouse for food supplies. Pork, beef, vegetables, fowl and many other food items were stored in huge quantities to get the garrison through the winter when Mackinac Island was isolated by storms and ice.
Today, the Post Commissary is now the Fort Mackinac Museum Store, with books and merchandise related to the history of Fort Mackinac and the island. Items are available for all ages and interests. The heated shop makes a welcome stop on a cool spring or fall day.