Don Bridge Battery
During the War of 1812, an artillery battery stood near this site. In 1813, following American attacks on the Town of York in April and July of that year, the battery was built as part of the reconstruction of York's defences and to guard the bridge over the Don River leading to the town.
The eastern defences were far less substantial than those built at the western approach to York because Ashbridges Bay and Toronto Island (then a peninsula) made it difficult for American navy vessels to support an attack from the east end of the harbour. Dismantled after 1815, all remaining traces of the battery were lost in later development.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.