Battle of Stoney Creek
During 1813 the Americans planned to invade Upper Canada from Detroit and the Niagara Peninsula. In late May, an American force crossed the Niagara River, seized Fort George, and with about 3500 troops moved inland in pursuit of the British who retreated to Burlington Heights. At Stoney Creek, a surprise night attack by about 700 regulars of the 8th and 49th Regiments of Foot under Lt.-Col. John Harvey halted the American advance and allowed the British to re-establish their position on the Niagara frontier. The Americans retreated to Forty Mile Creek and subsequently to Fort George.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.