Pelee Island is an island in the Canadian province of Ontario. It is located in the western half of Lake Erie. At 42 km2 (16 sq mi), Pelee Island is the largest island in Lake Erie and the southernmost populated point in Canada. An Ontario Historical Plaque was erected by the province to commemorate the development of Pelee Island's role in Ontario's heritage. Nearby Middle Island is the southernmost point of land in Canada.