Black Diamond Cemetery is considered haunted by the spirits of local coal miners, who are said to manifest as floating lanterns, apparitions, or strange noises like whistling and hammering on foggy nights. Visitors have also reported seeing a white horse weave between the graves, a supernatural haze, and hot blasts of air from the surrounding woods. The site is a popular destination for paranormal investigators due to these reported phenomena, particularly around the single burial plot containing eight bodies, where ghostly activity is reportedly very high. People report seeing strange, floating lights that resemble lanterns, especially on foggy nights, and sometimes see them appear in bursts of five. Whistling sounds, hammering, and other commotions are heard, potentially coming from the woods or the miners' efforts in the afterlife. Ghosts of the deceased miners are said to appear as apparitions, and a white horse has been seen moving through the grave sites. Reports include unusual fog, a supernatural haze, and hot blasts of air coming from the woods. Many visitors report an unsettling and eerie feeling when in the cemetery.