Patterson Inn (Croke-Patterson-Campbell Mansion)

The Patterson Inn's haunting accounts begin before the building was a hotel. During the renovation work that preceded the 2013 opening, workers reported persistent disturbances: apparitions of children in the hallways, voices without visible speakers, sudden drops in temperature in specific rooms. The renovation team's accounts, documented in 303 Magazine, noted that these were not isolated incidents but consistent enough that some workers refused to be in the building alone.

Two guard dogs employed during the renovation died after apparently falling from a third-floor window. This was reported by the renovation team and has been independently referenced in multiple accounts of the mansion's history. No human witnessed the dogs' departure, and no explanation for the fall was established.

The haunting claims count as many as 12 distinct presences in various accounts. The most documented are Thomas Patterson himself, who reportedly appears in the suites associated with his family's occupancy; a male figure associated with the carriage house described as resembling an Irish caretaker from the mansion's domestic staff era; and an apparition of Katharine Patterson, Thomas's daughter, who has been described as helpful to distressed guests rather than threatening.

The original occupant, Thomas Croke, remains the building's most persistent mystery. The Colorado Encyclopedia documents his rapid departure after a single visit to the completed house, but no historical record survives of what he encountered or told anyone about it. He never returned.