Dates of Operation: 1887–2021
Current Diocese: Great Falls-Billings
Previous Diocese Involved:
Helena, 1887–1904
Religious Orders who worked at the Parish / School:
Jesuits (West Province), 1887–2015*
Ursuline Sisters of the Roman Union (Western Province), 1887–1936*
School Sisters of St. Francis, 1936–1985*
Dominican Sisters of Sparkill, 1973–2020*
On a Reservation: Fort Belknap Reservation
On the Department of the Interior List: Yes
Tribal Nations Impacted (as listed in historical documents):
Assiniboine; Chippewa-Cree; Cree; Crow; Dakota; Gros Ventres; Nakona; Ojibwe; Sioux

Notes: In 1936, the Ursulines withdrew from the school, and the boarding section was closed. The school continued to operate as a day school until it closed in 2021.