State Archives
Mail Address: Montana Historical Society Research Center PO Box 201201, 225 N Roberts St Helena, MT 59620-1201 Courier Address: Montana Historical Society Main Phone : 406-444-4739 RESEARCH CENTER: 406-444-2681 Fax: 406-444-5297 Internet: http://montanahistoricalsociety.org/ Hours: 9AM-4:30PM T-F and 1st SA each month 9AM-1PM |