Catherine Rearden, 77, was last seen sometime between midnight and 4:00 a.m. on Wednesday, May 6, 2026, in the area of 1021 Millegan Road, approximately 10 miles south of Ulm. It is possible she has been missing for up to 17 hours. She is described as 5’10” tall with blue eyes and gray hair. She was last seen wearing a black trapper hat and a black winter coat. Due to her condition, it is believed she may keep the hat on regardless of weather conditions.
Family and friends searched the area after Catherine was first noticed to be gone. The Cascade County Sheriff’s Office was notified at approximately 2:34 p.m. Wednesday, at which time deputies and Cascade County Search and Rescue immediately began coordinated search efforts.
Search efforts have included searches of outbuildings and structures in the immediate area, along with expanded ground and aerial searches.
Montana Fish, Wildlife and Parks assisted with a thermal drone search, and two helicopters from Malmstrom Air Force Base joined the search around 6:30 p.m., assisting with aerial searches of the surrounding terrain, river areas, coulees, and nearby properties.
Catherine is known to have dementia, and her direction of travel is unknown. Individuals living with dementia may continue walking for long distances, cross rough terrain, become disoriented, attempt to return to former residences, or hide in brush, structures, or concealed areas.
Two years ago, Catherine walked away from the same residence and was later located approximately three miles away near 747 Millegan Road, where she had been hiding from people attempting to locate her.
Investigators say Catherine may display mild or childlike behavior, become ornery, make irrational statements about family members, or talk to people who are not present. She frequently talks about growing up in Fort Shaw and may attempt to travel in that direction. Residents in the Fort Shaw area are encouraged to remain alert and report any possible sightings.
Searchers are asking the public to carefully check properties, outbuildings, brush, vehicles, and any areas where a person could become stuck or concealed.
Residents in the area should expect to see deputies and Search and Rescue personnel continuing operations throughout the night.
Anyone who may have seen Catherine Rearden or has any information related to her whereabouts is asked to immediately call 911.
