This Sept. 23, 2012 photo shows a cannon being loaded for a demonstration at Fort Mackinac on Mackinac Island, Mich., on Lake Huron. The fort, located on the island since 1780, was such an important ... more 
This Sept. 23, 2012 photo shows a cannon being loaded for a demonstration at Fort Mackinac on Mackinac Island, Mich., on Lake Huron. The fort, located on the island since 1780, was such an important military outpost for the Great Lakes region that the British retained control of it until 1796, well after the Americans had won the Revolutionary War. (AP Photo/Anick Jesdanun) less 
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Associated Press | Photo By Anick Jesdanun
Tue, Jun 11, 2013 3:18 PM EDT