Most haunted in Montana? Our creepiness rating 💀💀💀💀💀
In 2024 NBC Montana visited the Dumas for a paranormal investigation and described it as considered by some the most haunted building in Montana. Source: NBC Montana, 2024.
Facts below are drawn from the linked sources.
Real history
French-Canadian brothers Joseph and Arthur Nadeau founded the brothel in 1890 and named it for Joseph's wife, Delia Nadeau, née Dumas. It closed in 1982 as the longest-operating brothel in the United States (Wikipedia).
In 2018 KXLF reported that David and Charlee Prince of Forsyth bought the building at a city auction held after the previous owner went four years delinquent on property taxes, and planned tours and ghost hunts (KXLF, 2018). NBC Montana, citing the Montana Standard, reported the October 2018 tax deed auction price as $29,000 (NBC Montana, 2018).
Ghost stories
These are reported legends, not verified events. The creepiness score (1–5) is Spook Atlas's own editorial rating, not a measurement.
Then and now
Public access
Partly open The brothel's own site says it is usually open for tours every other Saturday and closes for the cold season (Dumas Brothel). Last checked: Oct 31, 2026.
Explore more
- More places in Butte and Montana
- More haunted & abandoned mansions
- Nearby: Mother Lode Theatre (Butte, MT), Comet (Comet, MT), Old Montana Prison (Deer Lodge, MT), Elkhorn (Elkhorn, MT)
⚠️ Please read: This information may be outdated and conditions change. Verify access with the owner or operator before you go. Spook Atlas does not encourage trespassing. Entering private, closed or condemned property can be illegal and dangerous. Report a correction.
Reader experiences
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