The sheriff’s office says the crash occurred Saturday about 9 p.m. in the Township of Lisbon.
Authorities believe the vehicle gradually veered toward the shoulder while entering a curve. Then it struck a driveway and went airborne, ejecting both occupants as it rolled several times.
The vehicle was registered to 29-year-old Greg T. Gallup of Wisconsin Dells. He was pronounced dead at the scene.
The other man was 28-year-old Jason L. Peterson of Reedsburg. He was pronounced dead at a hospital.
Authorities say they’re not sure which man was driving. They suspect alcohol was a factor.

