This church building is in the parish of Lille, in Grand Isle Township, Maine. Official Catholic religious services ceased in 1978, and the church was acquired by LíAssociation culturelle et historique du Mont-Carmel in 1984. It was built in 1909 by Edmundston contractor LÈonide GagnÈ from plans by architect Theo. Daust. The National Register nomination describes the church as "a structure reflecting a high style form which has been expressed in a vernacular manner." The reference to high style form includes its nave with adjacent aisles, towering clerestory, elaborately fenestrated facade, and twin Baroque-style belfries. The vernacular aspects of the church include its wooden structure, clapboard exterior, simple wooden moldings, and hand-marbleized interior columns.

LíAssociation is restoring the church building to house and interpret collections and to provide a venue for cultural programs. Interpretive efforts utilize a large collection of religious artifacts, and the building itself, to relate the influence of religion in the Valley.