The Mystery Machine
Mystery Machine
Historic Site

Old Idaho Penitentiary

Boise

Historic Site High Activity

History & Paranormal Activity

This 1872 prison held criminals for over a century before closing in 1973 following a series of violent riots. The solitary confinement building — known as Siberia — is the most active paranormal area. Investigators document shadow figures, EVPs responding in the voices of documented former inmates, and a figure in the gallows room that appears in photographs.

Tags

historic haunted

🔒 Classified Field Investigation Notes

Riot records from 1971 describe guards reporting a 'figure in white' on the walls during the worst hours of the disturbance — the figure appeared in multiple independent guard reports but is not reflected in the official riot summary.
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Location

43.6012°N, 116.1634°W