The Montana Historical Society (MHS) is a historical society located in the U.S. State of Montana that acts to preserve historical resources important to the understanding of Montana history. The Society provides services through six operational programs: Administration, Research Center, Museum, Publications, Historic Preservation, and Education. It is governed by a 15-member Board of Trustees, appointed by the Governor, which hires the director of the Society and sets policy for the agency. Founded in 1865, it is one of the oldest such institutions in the Western United States.