Description: Fort Drum, 1974, Jefferson County, Watertown. Camp Drum was designated Fort Drum in 1974 and a permanent garrison was assigned. In January 1984, the Department of the Army announced it was studying selected Army posts to house a new light infantry division. On September 11, 1984, the announcement was made that Fort Drum would be the new home of the 10th Light Infantry Division. The first division troops arrived at Fort Drum on December 3, 1984 and the unit was officially activated on February 13, 1985. The name was changed to the 10th Mountain Division (Light Infantry) at that time. The division reached full strength in 1989. Between 1986 and 1992, 130 new buildings, 35 miles of roads, and 4,272 sets of family housing units were built at a cost of $1.3 billion. See also Pine Camp and Camp Drum.