Coeur d'Alene's Old Mission State Park is heritage-oriented in the western United States in northern Idaho, preserving the Mission of the Sacred Heart, or Cataldo Mission, a national historic landmark. The park contains the church itself, the parish house, and the surrounding property. Built in 1850–1853, Mission of the Sacred Heart is the oldest standing building in Idaho. It was designated a National Historic Landmark in 1961, and put on the National Register of Historic Places in 1966.

Cataldo is an unincorporated community in Kootenai and Shoshone counties in northern Idaho. It is located at an altitude of 2,139 feet (652 m). Cataldo lies on the southeast banks of the Coeur d'Alene River and Interstate 90 passes the south side of the community. The community of Kingston lies along I-90 to the east. The ZIP Code for Cataldo is 83810.