When the air grows chilly and the veil between worlds thins during Halloween, Salt Lake County becomes a playground for the paranormal. This region, steeped in history and folklore, is home to some of Utah’s most spine-chilling locations where ghost sightings and eerie encounters are the norm. Whether you’re a thrill seeker or a believer in the supernatural, these terrifying places will give you goosebumps long after you’ve left. If you're looking for a truly terrifying Halloween experience, here are the scariest haunted spots in Salt Lake County.

Fear Factory

Located just outside downtown Salt Lake City, Fear Factory isn’t just a haunted attraction for thrill seekers—it’s a real-life haunted site. Once the Portland Cement Factory, this massive industrial facility was the scene of numerous gruesome deaths, including factory accidents where workers were crushed by machinery or fell into vats of cement. Today, the factory stands abandoned, except for the reported spirits of the workers who died there.

Visitors and staff at Fear Factory have reported hearing eerie whispers, seeing shadowy figures dart across the dilapidated buildings, and feeling an oppressive energy that seems to follow them. One of the most harrowing sightings is that of a disembodied hand, believed to belong to a worker who lost his life in a terrible accident. On Halloween, the site transforms into a commercial haunted house, but many say the real terror is the spirits that never left.

The Old Mill

Arguably the most infamous haunted location in Salt Lake County, the Old Mill sits abandoned in Cottonwood Heights, shrouded in mystery and fear. Built in the late 1800s, the mill was used to process grain before a fire destroyed much of the building. While the mill has stood vacant for decades, it has gained a reputation as one of Utah’s most terrifying places.

Local legends claim that the Old Mill is haunted by the ghosts of workers who died in the fire, as well as by more sinister forces. Paranormal investigators have reported intense cold spots, phantom footsteps, and feelings of dread upon entering the property. The most terrifying accounts tell of shadowy figures watching from the upper floors, and some visitors claim to have been physically touched or shoved by unseen hands. Trespassing is illegal, but that hasn’t stopped urban explorers from visiting—many of whom leave in a hurry, spooked by the unsettling atmosphere.

The Shilo Inn

The Shilo Inn, now a Holiday Inn Express, is one of Salt Lake City's most tragic and haunted locations. In 1978, the hotel became the site of a horrific mass murder-suicide when a mother, who had become obsessed with religious doomsday beliefs, threw her seven children from the hotel’s balcony before leaping to her death. The tragedy shocked the community, and ever since, the hotel has been plagued by paranormal activity.

Guests have reported hearing the sound of children crying or laughing in the hallways, even when no children are staying there. Some have woken up to see ghostly children standing at the foot of their bed, only for the figures to disappear moments later. The hotel's staff also report eerie occurrences, such as flickering lights, doors opening and closing on their own, and sudden cold drafts. This real-life horror makes the former Shilo Inn one of the most unsettling locations in Salt Lake County and a place few would dare stay on Halloween night.

The Old Deseret Hospital

Located near the historic Avenues District in Salt Lake City, the Old Deseret Hospital opened its doors in 1882, catering mainly to women and children. While the hospital is long gone, many locals believe that the spirits of patients who died there still linger. Those who visit the area report hearing phantom cries, especially at night, and some have even seen the apparition of a nurse walking down where the hospital once stood.

Today, the location is a hotspot for ghost hunters who claim that the residual energy from the building still haunts the area. As the sun sets, the once-bustling neighborhood can take on a much more somber and eerie tone, making it the perfect place for a Halloween exploration.

The Rio Grande Depot

A hub of history, The Rio Grande Depot in Salt Lake City was once a bustling train station. Now home to offices and a museum, it’s better known for the ghostly “Purple Lady,” a spectral figure seen wandering the building. According to legend, the Purple Lady died on the train platform in the 1920s after a lover’s quarrel. Distraught, she either fell or was pushed in front of a train, her body mangled in the accident.

Since then, her ghost has been spotted by countless people, often appearing in her elegant purple dress, wandering the halls or standing at the end of the platform. Lights flicker mysteriously, and security guards working after hours have reported objects moving on their own and the feeling of being watched. The depot’s cavernous halls amplify every sound, making even the slightest noise unsettling. On Halloween night, the energy in the depot becomes even more intense, and many believe it’s the best time to catch a glimpse of the Purple Lady herself.

Asylum 49

Technically located just outside Salt Lake County in Tooele, Asylum 49 deserves a mention for its terrifying proximity and haunted history. Once a hospital, this site is now a full-fledged haunted attraction. But while actors and special effects create a terrifying show, the real horror lies in the ghosts that are said to haunt the building.

Former patients of the hospital are believed to roam the halls, and many visitors have claimed to see shadow figures, hear ghostly voices, and feel sudden cold spots. Paranormal investigators have documented disembodied voices and even poltergeist activity in certain rooms. Unlike most haunted houses, Asylum 49 encourages interaction with both the living and the dead, making it one of the most immersive and frightening haunted locations in Utah. If you're looking for an experience that blurs the line between entertainment and real paranormal encounters, this is the place to go.

Salt Lake County is filled with ghostly tales and terrifying haunted sites, each with its own dark history and eerie energy. From the real-life tragedy at the Shilo Inn to the haunted corridors of the Old Mill, these locations offer a chilling experience that will make for a Halloween night you won’t forget. Whether you believe in ghosts or not, these haunted places are sure to give you a scare, leaving you wondering what might be lurking just out of sight.