Mark Nelson Dies After Early Morning UTV Crash Into Tree in Lafayette County

The quiet, early morning air in Lafayette County was shattered this past Sunday when a routine ride took a tragic turn. Mark A. Nelson, a 55-year-old man from the Potosi area, lost his life after his utility terrain vehicle veered off a rural road and struck a tree. The crash happened just as the sun was beginning to peek over the horizon, leaving a community in mourning and officials once again pleading for off-road safety.

It was around 6:30 a.m. when emergency dispatchers picked up a frantic 911 call reporting a serious wreck in the 13000 block of Wildcat Road, located in the Town of Darlington. When deputies and first responders arrived at the scene, they found a 2025 Can-Am UTV with heavy front-end damage. The impact was so severe that Nelson, who was the only person in the vehicle, was pronounced dead right there at the scene by the Lafayette County Coroner’s Office.


Investigators from the Wisconsin Department of Natural Resources, who have since taken the lead on the case, believe Nelson was traveling eastbound when he hit a curve he just couldn’t navigate. Instead of following the bend in the road, the powerful Can-Am kept going straight, leaving the pavement and slamming directly into a tree. The force of the collision was enough to partially eject him from the vehicle.

One of the most heartbreaking details to emerge from the preliminary investigation is that Nelson wasn’t wearing a seatbelt. While UTVs are built with sturdy roll cages, those safety features are designed to work in tandem with restraints. Officials noted that in many of these rural accidents, a simple click of a belt can be the difference between a scary story and a fatal one.

Sheriff Reg Gill and his team initially secured the area, but the DNR Wardens are now diving into the nitty-gritty of why this happened. They’re looking at everything—speed, the road conditions that morning, and whether visibility played a role in the crash. It’s a slow process, as off-road investigations often involve checking mechanical parts and environmental factors that you don’t typically see in a standard car wreck.

This tragedy adds to a growing and sobering list of off-road fatalities in Wisconsin this year. So far in 2025, the state has seen dozens of lives lost in similar incidents. Most of these crashes share a common, preventable thread: a lack of safety gear or formal training. The DNR keeps reminding everyone that these machines aren’t just smaller cars; they have a higher center of gravity and handle differently, especially on the winding backroads of the Tri-State area.

For now, Wildcat Road is quiet again, but the lesson remains for anyone heading out on the trails. Authorities are urging operators to stick to the speed limits, stay alert on unfamiliar paths, and most importantly, use the safety equipment provided. As the investigation into Nelson’s death continues, his family and the Potosi community are left grappling with a sudden loss that happened far too soon on a Sunday morning.

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