https://www.pcmaf.org/2025-win-a-classic-car-raffle?utm_source=AudienceExtension&utm_medium=Preroll&utm_campaign=KHQ_OldMontanaPrisonAndAutoMuseum_812-000307
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OMP Gun Show 8/22

Fri, Aug 22

|

PEN Convention Center

OMP Gun Show 8/22
OMP Gun Show 8/22

Time & Location

Aug 22, 2025, 12:00 PM – 6:00 PM

PEN Convention Center, 925 Main St, Deer Lodge, MT 59722, USA

About the event

Come one, come all to the Old Montana Prison semi-annual Gun Show!!!

This is a FREE event and will be inside the PEN Convention Center located at 925 Main St. in Deer Lodge!

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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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