Precious Blood Cathedral, Ontario's cathedral

Precious Blood Cathedral is the mother church of the Roman Catholic Diocese of Sault Sainte Marie, Ontario, located in Sault Ste. Marie. The present church building opened in 1875 and was fully renovated in 1963. It is a Gothic Revival structure, and in 2013 the parish announced a $4 million expansion including a 5,500-square-foot multi-use hall for the diocese's social ministry programs.

Catholic missionaries reached the area around 1815, when Sault was an outpost of the Northwest Company. A wooden church for the Parish of the Sacred Heart was built in 1846, and the present church opened in 1875 as the Catholic population, largely French Canadian and Irish immigrants, grew. It became a cathedral in 1904 when the diocese was created, and the parish took its current name in 1936.

The parish took its present name, Precious Blood, in 1936, after decades as the Parish of the Sacred Heart. Its congregation formed largely from French Canadian and Irish immigrants who settled in Sault Ste. Marie as the Catholic population grew rapidly in the late 19th century.

The cathedral stands in Sault Ste. Marie, Ontario, near the border with Sault Ste. Marie, Michigan, whose parish served local Catholics before 1846. The present church opened in 1875 and was fully renovated in 1963. In 2013 the parish announced a $4 million expansion including a 5,500-square-foot multi-use hall for the diocese's social ministry programs.

The parish announced in 2013 a $4 million expansion of the grounds, centred on a 5,500-square-foot multi-use hall that would house the diocese's social ministry programmes. The building itself had been fully renovated fifty years earlier, in 1963.