The Lewis County Historical Museum in Chehalis is reported to be haunted, with alleged sightings of ghosts, disembodied voices, and unexplained phenomena reported by visitors, employees, and paranormal investigators. The former railroad depot is said to house spirits, and investigators have recorded anomalous sounds and seen apparitions, leading to the location being considered a hotspot for paranormal activity. Eyewitnesses have reported seeing various spirits, including ghosts of men and a Native American woman. Paranormal investigators have documented electronic voice phenomena (EVPs), where voices seem to respond to questions or comments made during investigations. The museum has been the focus of paranormal investigations by groups like South Sound Paranormal Research (SSPR), who have collected extensive data and evidence suggesting a haunting.