Tyler Kinison died Sunday after losing control of his snowmobile and hitting several trees.
Police officials say speed is believed to have been a factor in the crash.
The 34-year-old Kinison had been a firefighter for five years. He was also a member of the fire department's snowmobile rescue team.
Sunday's accident happened in Boulder Junction, about 300 miles north of Rockford.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.