Bois Blanc Island Blockhouses
Following the evacuation of the British military post at Detroit in 1796, a new establishment was commenced opposite here on the site of Amherstburg, and two blockhouses were built on this island to serve as outposts. As a result of armed attacks on Amherstburg by supporters of William Lyon Mackenzie during the Rebellion of 1837-38, the original defences on Bois Blanc were replaced in 1839 by three new blockhouses, and a picquet house enclosed by a palisade. The latter housed regular troops from Fort Malden until 1851 and thereafter Enrolled Pensioners until 1859. The two remaining blockhouses are situated at the centre and south end of the island.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.