St. John the Baptist Church was built in 1884 in Frenchtown, Montana. It is one of the oldest churches in Montana that still holds weekly masses. St. John the Baptist Church is significant for its architecture which is customary to a specific time and place in Montana and not replicated from elsewhere. It’s cultural, indigenous associations played a significant part in the settlement and development of Frenchtown, Montana. Lugar Forast, a ship's carpenter, is credited as the primary builder of the church but a number of local men reportedly assisted in its construction. The church originally had two wood burning stoves located at each end of the center aisle. Now, 136 years later, the church is in need of a new furnace to be able to continue holding weekly masses throughout the winter.