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Welcome To

​The Old Montana Prison Museum & Auto Collection 

5 Great Attractions

1 Low Price

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March Events

  • 2026 Season Opening Day
    2026 Season Opening Day
    37 days to the event
    2026 Season Opening Day
    Mar 13, 2026, 10:00 AM – 4:00 PM
    Deer Lodge, 1106 Main St, Deer Lodge, MT 59722, USA
    The Old Montana Prison & Auto Collection will be opening its doors from 10 AM to 4 PM on March 13 for our 2026 season!
  • PCMAF 59th Annual Business Dinner
    PCMAF 59th Annual Business Dinner
    44 days to the event
    PCMAF 59th Annual Business Dinner
    Mar 20, 2026, 5:30 PM – 9:00 PM
    PEN Convention Center, 925 Main St, Deer Lodge, MT 59722, USA

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About Us

The Powell County Museum and Arts Foundation is a local non-profit membership organization which operates the Old Montana Prison as a Museum. As the Old Prison Complex contains buildings located on three blocks outside the Old Prison walls, other collections have been brought in to fill five museums.

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Powell County Museum & Arts Foundation

Old Montana Prison & Auto Museum Complex

1106 Main St. Deer Lodge, MT 59722

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