Old Prison Museum Complex Schedule of Events


  • December 17th 2017 – Museum Closed for Annual Maintenance Happy Holidays!
  • January 11th – Museums Open 7 days a week for 2018 season from 9 am until 4 pm
  • January 15th – PCMAF Annual Business Meeting at 6pm at the PEN Convention Center
  • March TBA– Missoula Children’s Theater
  • March 12th – Dinner & Concert “Banaff Wardens  “ PEN Convention Center at 6:30 Tickets $25.00 per person
  • May 4th – Ghost Tours begin and run through October; dates and tickets can be purchased under the paranormal button on the website
  • May 6th-12th– OPM Celebrates Mothers with 25% off in the Gift Shop
  • May 15th – All Museums open 7 days a week on summer schedule
  • May 15th – Peace Officer Memorial Day at the Old Prison Museum High Noon in the Prison Yard
  • May 15th – Yellowstone Exhibit opens in Frontier Montana Museum “Yellowstone Park Official Photographer “Haynes”
  • May 19th – Community Day !!!!
  • June 15th-17th– Territorial days –16th Classic Cars in the Old Prison Yard from 9am to 11am
  • June 16th– OPM Celebrates Fathers with 5:30 pm drawing for a Gift
  • June 29th– July 1st – Big Sky Draft Horse Expo (Deer Lodge Fair Grounds) httpp://
  • June 29th – July 1st – Montana Academy of Living History
  • July 4th – Annual Fireworks Display and Pig Roast – Old Prison Yard Free to Public
  • August TBA – Shakespeare in the Park – Old Prison Yard Free to the Public 6pm
  • October TBA –Oktoberfest- Fundraiser for the Powell County Medical Foundation – PEN Convention Center
  • October – Old Montana Prison Haunted House 19th 20th and 25th-27th
  • October 27th – Art Club Bazaar at the PEN Art Gallery
  • November 22 – CLOSED for Thanksgiving
  • December 7th – 18th Annual drawing for the “Win a Classic Car”
  • December 17th – All Museums will be closed for Annual Maintenance will reopen first part of January

"Along the Yellowstone Trail"