The Lost History Museum in Valles Mines, Missouri, is known for its paranormal activity due to its location in a historic mining town with a dark and tragic past. It is believed to be haunted by the spirits of former miners and railroad workers, and local paranormal groups have conducted ghost hunts and documented evidence of ghostly occurrences. The museum is situated in one of the oldest frame houses west of the Mississippi. The entire area of Valles Mines was once a bustling mining town that is now considered a ghost town. The dark and dangerous history of the mines and the harsh life of the workers is believed to have left a paranormal imprint on the area. Visitors and staff at the museum have reported unexplained phenomena, such as disembodied voices and objects moving on their own. Ghost hunting groups have conducted investigations at the museum and have reported capturing electronic voice phenomena (EVP) and other evidence of paranormal activity. Some have also held public events and tours to investigate the site. The nearby abandoned railroad tunnel on the property is also believed to be a hotbed of paranormal activity. The dark and eerie tunnel is said to be haunted by the spirits of railroad workers.