In 1957, Forsyth celebrated its Diamond Jubilee. A resident proposed that the money be used for a museum. The Pioneer Museum houses memorabilia and keepsakes gleaned from many families who pioneered in Rosebud County.
Most exhibits are on loan or donated to the museum.
The doors opened in May of 1966. Mrs. Clara Roberson was the first curator. County funds have been expended for museum additions over the years. The museum is open from May 1 through Sept. 15. Average number of viewers since 1966 has been 2,200 people.