
Entry No. 35 — the Missoula file — filed under: haunted
Old Montana Prison Ghost Tours
The Old Montana Prison opened in 1871 and held inmates until 1979, and its stone cell house, gallows yard and Death Tower survive intact as a museum. On scheduled overnight ghost tours run by experienced investigators, small groups get locked in from 8 p.m. to 2 a.m. and taken into areas closed to daytime visitors, including the upper cell tiers and the tower. Investigative equipment is provided; participants must be at least 15.
The story
In 1871, long before Montana was granted statehood, territorial convicts were set to work cutting stone to build their own prison in Deer Lodge. For the next 108 years—until the complex finally shut down in 1979—the fortress on Main Street held thousands of inmates through brutal winter freezes, solitary isolations, and a deadly 1959 riot. When the state moved the prisoners down the road, they didn't tear down the stone cell house or the Death Tower; they left the heavy steel doors hanging on their hinges.
The overnight ghost tours aren't a theatrical theatrical jump-scare setup with fake blood and actors in masks. Run on specific dates from April through October by experienced paranormal investigators, these six-hour lock-ins put actual monitoring equipment in your hands and grant small groups access to parts of the prison strictly off-limits during daytime museum hours.
You spent six hours—from 8 p.m. until 2 a.m.—inside the unheated stone cell blocks, climbing the narrow steel stairs to the upper cell tiers, and standing in the quiet of the gallows yard. The lingering air inside stone walls that thick doesn't feel like a museum; it feels like a place where a century of human captivity soaked directly into the masonry.
What it's like
Arrive at 1106 Main Street before 8 p.m. dressed in heavy layers—the stone cell house traps the cold long after sunset, even in midsummer. After a briefing, the outer gates shut, small groups divide up with team leads, and you are handed EMF meters and digital thermometers. You'll spend the night navigating unlit corridors, monitoring dark cell blocks, and climbing narrow iron stairs to the upper tiers and the Death Tower. Wear dead-silent rubber-soled shoes, bring a reliable flashlight with fresh batteries (cold air drains them fast), and expect a slow-burn, quiet investigation rather than a timed haunt attraction.
The move: Book a couples spot on a late-spring overnight investigation, then split the 90-minute drive home the next morning with breakfast in Deer Lodge while you compare what you each thought you heard in the cell house.
📍 Before you go Tours run on specific dates April-October (e.g. June 6 & 20, July 10, Aug 8 & 28); buy tickets per-event at pcmaf.org. Runs 8 p.m.-2 a.m., ages 15+, under-18s need a guardian.
- 📍 Deer Lodge
- 💸 $$
- ⚡ Up for anything
- 🌗 Indoors
Where: 1106 Main St, Deer Lodge, MT 59722
Hours: Added 2026-06-24 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- Anaconda Smelter Stack (The Big Stack) — Pair a night inside Deer Lodge's 1870s stone cell block with a 20-mile drive south to stand beneath the world's tallest free-standing brick stack from the same heavy industrial era.
- Granite Ghost Town State Park — Double down on late-1800s Montana dark history by heading west to explore the windswept ruin of a silver boomtown that collapsed around the same time the prison was in its prime.
- Ohrmann Museum & Gallery — Clear your head on the drive back toward Missoula with a stop to wander through a farmyard packed with giant, surreal welded-steel animal sculptures.
Good to know
When do the overnight investigations take place?
Tours run on select dates between April and October, always operating from 8 p.m. to 2 a.m. Tickets are sold per-event through the Powell County Museum and Arts Foundation website (pcmaf.org).
How old do you have to be to attend?
Participants must be at least 15 years old. Anyone under 18 must be accompanied by a parent or legal guardian.
What areas do you get to visit during the night?
You get access to areas restricted during normal day tours, including the upper cell tiers, the Death Tower, and the gallows yard.
Do I need to bring my own paranormal gear?
Investigative equipment is provided for the group, though you should bring a good personal flashlight and spare batteries.
Plan a visit & invite your people →
Further reading: pcmaf.org · Wikipedia · southwestmt.com
last checked: 2026-06-24