Grand Lake Township Man Timothy Peterson, 67, Killed Under Snow Groomer

Timothy Peterson, 67, of Grand Lake Township, was pronounced dead at the scene after becoming trapped beneath a tracked snow groomer on the 6800 block of Carlson Road in the Twig area, the St. Louis County Sheriff’s Office said. Duluth News Tribune reported, "The call was placed shortly after 3 p.m." on March 3.

Authorities said the groomer was a privately owned, older piece of equipment that was being used to plow a driveway on private property rather than operating on a public snowmobile trail. The Sheriff’s Office release, quoted by WDIO, stated, "This did not take place on a snowmobile trail and was a privately owned piece of equipment on private property."

Local responders who attended the scene included deputies from the St. Louis County Sheriff’s Office, the Grand Lake Fire Department, Mayo Clinic Ambulance Service (listed as Mayo ambulance), LifeLink, St. Louis County Public Works and Lake City Towing. Emergency personnel pronounced Peterson dead at the driveway where the groomer was operating, and the Midwest Medical Examiner’s Office was called to the scene to assist with the investigation.

News outlets agree on the location as the 6800 block of Carlson Road in Grand Lake Township; KROC noted the property is about 17 miles northwest of Duluth. Most reports tied the incident to March 3 and described first responders arriving shortly after 3 p.m.; one outlet, KROC, reported deputies responded "shortly before 3:15 Thursday afternoon," a slight timing and weekday discrepancy in published accounts.

The Star Tribune described the tracked vehicle as an older machine "designed for trails," language echoed across other local reports that emphasized the groomer’s trail-oriented design even as it was being used to plow a private driveway. No make, model or further mechanical details about the groomer have been released.

The St. Louis County Sheriff’s Office is leading the investigation, with the Midwest Medical Examiner’s Office assisting; investigators say foul play is not suspected. No cause of death or autopsy findings have been released publicly. County officials and responding agencies have not provided family statements or additional operational details; the Sheriff’s Office and the medical examiner will provide further information as the inquiry continues.