On July 5, 1867, the Roman Catholic Church established St. Joseph's Mission halfway between Williams Lake and 150 Mile House. In 1891, the mission opened an Indian residential school, called St. Joseph's School. The school became one of the most notorious Indian residential schools over the 90 years it operated. A St. Joseph's School reunion in 2013 in Williams Lake led to the creation of Orange Shirt Day, a memorial to the victims of the Canadian Indian residential school system that is observed nationally. A memorial monument to the victims of the school was also erected in 2013, in Boitanio Park.